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Using an API key with xcodebuild commands for Enterprise builds
Hey folks, Looking for some assistance with using an API key with xcodebuild commands to archive/export builds on our Enterprise developer account. The goal here is to allow Xcode to completely manage signing/certificates with our cloud distribution certificate, since these builds are happening in CI and we don't want to be manually handling user sessions/certificates on these machines. This is working great with our App Store account, but with our Enterprise account we're getting errors both archiving and exporting the builds. Here's an example of an export command that is giving errors: xcodebuild -exportArchive -exportOptionsPlist /path/to/exportOptions.plist -archivePath /path/to/archive.xcarchive -exportPath /path/to/export -authenticationKeyID *** -authenticationKeyIssuerID *** -authenticationKeyPath /path/to/key.p8 -allowProvisioningUpdates I've put some example values there, but we've double/triple checked the real values when this is actually running. These are the errors we're getting: 2026-02-02 12:30:04.022 xcodebuild[59722:1854348] DVTServices: Received response for 0794248F-E534-474D-ABBF-40C1375B6590 @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} 2026-02-02 12:30:04.173 xcodebuild[59722:1854348] DVTServices: Received response for 1D51FCD1-1876-4881-BE89-DD44E78EA776 @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} 2026-02-02 12:30:04.322 xcodebuild[59722:1854344] DVTServices: Received response for 25D7983F-1153-47C9-AE8A-03A8D10B6453 @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} 2026-02-02 12:30:04.483 xcodebuild[59722:1854344] DVTServices: Received response for 8A56C98B-E786-4878-856F-4D7E3D381DEA @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} error: exportArchive Communication with Apple failed error: exportArchive No signing certificate "iOS Distribution" found We get very similar errors when archiving as well. Are we doing something incorrect here? Is API key usage with xcodebuild not supported for Enterprise builds? Appreciate any help y'all can provide!
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Feb ’26
MCP servers don’t start in Codex (Xcode 26.3)
I’m trying to use MCP servers with Xcode 26.3 Coding Intelligence (Codex agent). With a project-scoped config file at /.codex/config.toml, MCP servers are not reliably loaded. /.codex/config.toml Example: [mcp_servers.Notion] url = "https://mcp.notion.com/mcp" enabled = true [mcp_servers.XcodeBuildMCP] command = "/bin/zsh" args = ["-lc", "/opt/homebrew/bin/npx -y xcodebuildmcp@beta mcp"] enabled = true tool_timeout_sec = 10000 Expected: Xcode consistently loads MCP servers defined in /.codex/config.toml across restarts. Actual: Xcode often only exposes xcode-tools. In some sessions MCP servers appear, but after restarting Xcode they may disappear. The global file at ~/Library/Developer/Xcode/CodingAssistant/codex/config.toml also seems managed/rewritten by Xcode and isn’t reliable for custom MCP servers. Questions Is /.codex/config.toml the official/supported way to configure MCP servers for Codex in Xcode right now? Are there any requirements for Xcode to load it (e.g. workspace must be Trusted, open .xcworkspace vs .xcodeproj, full restart/force quit, etc.)? Is there any logging/diagnostics to understand why the MCP server is not starting or not being picked up?
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Feb ’26
Application Hangs with Nested LazyVStack When Accessibility Inspector is Active
Description I've encountered a consistent hang/freeze issue in SwiftUI applications when using nested LazyVStack containers with Accessibility Inspector (simulator) or VoiceOver (physical device) enabled. The application becomes completely unresponsive and must be force-quit. Importantly, this hang occurs in a minimal SwiftUI project with no third-party dependencies, suggesting this is a framework-level issue with the interaction between SwiftUI's lazy view lifecycle and the accessibility system. Reproduction Steps I've created a minimal reproduction project available here: https://github.com/pendo-io/SwiftUI_Hang_Reproduction To Reproduce: Create a SwiftUI view with the following nested LazyVStack structure: struct NestedLazyVStackView: View { @State private var outerSections: [Int] = [] @State private var innerRows: [Int: [Int]] = [:] var body: some View { ScrollView { LazyVStack(alignment: .leading, spacing: 24) { ForEach(outerSections, id: \.self) { section in VStack(alignment: .leading, spacing: 8) { Text("Section #\(section)") // Nested LazyVStack LazyVStack(alignment: .leading, spacing: 2) { ForEach(innerRows[section] ?? [], id: \.self) { row in Text("Section #\(section) - Row #\(row)") .onAppear { // Load more data when row appears loadMoreInner(section: section) } } } } .onAppear { // Load more sections when section appears loadMoreOuter() } } } } } } Enable Accessibility Inspector in iOS Simulator: Xcode → Open Developer Tool → Accessibility Inspector Select your running simulator Enable Inspection mode (eye icon) Navigate to the view and start scrolling Result: The application hangs and becomes unresponsive within a few seconds of scrolling Expected Behavior The application should remain responsive when Accessibility Inspector or VoiceOver is enabled, allowing users to scroll through nested lazy containers without freezing. Actual Behavior The application freezes/hangs completely CPU usage may spike The app must be force-quit to recover The hang occurs consistently and is reproducible Workaround 1: Replace inner LazyVStack with VStack LazyVStack { ForEach(...) { section in VStack { // ← Changed from LazyVStack ForEach(...) { row in ... } } } } Workaround 2: Embed in TabView TabView { NavigationStack { NestedLazyVStackView() // ← Same nested structure, but no hang } .tabItem { ... } } Interestingly, wrapping the entire navigation stack in a TabView prevents the hang entirely, even with the nested LazyVStack structure intact. Questions for Apple Is there a known issue with nested LazyVStack containers and accessibility traversal? Why does wrapping the view in a TabView prevent the hang? Are there recommended patterns for using nested lazy containers with accessibility support? Is this a timing issue, a deadlock, or an infinite loop in the accessibility system? Why that happens? Reproduction Project A complete, minimal reproduction project is available at: https://github.com/pendo-io/SwiftUI_Hang_Reproduction
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Feb ’26
FileProvider fails to trigger re-enumeration
I'm working on a FileProvider which allows access to encrypted files in Dropbox; I can successfully read and present the decrypted files, so I know it's basically working. But I'm having problems getting FileProvider to re-enumerate a folder when its encryption status changes. When the FileProvider receives an update notification saying a folder is now encrypted, I use signalEnumerator to re-enumerate the folder: FileProviderExtension.manager?.signalEnumerator(for: existingItem.itemIdentifier, completionHandler: { (ourError : Error?) -> Void in       if let ourError = ourError {           log("notifyCallback: mount / unmount failed re-enumeration: \(ourError)")       } else {           log("notifyCallback: mount / unmount signalled re-enumeration; pending")       } }) The log reports that the re-enumeration is pending... but as far as I can tell, neither enumerateItems nor enumerateChanges is called on the folder's item unless a Finder window is actually open for that folder. This means that, when an app other than Finder tries to access the files through the filesystem, it doesn't see the updated set of filenames. (For further reference: I've added code to both enumerateItems and enumerateChanges, so that if the call has been triggered by a recent folder-encryption notification, it retrieves a complete set of items from the Dropbox folder. If a retrieved file has an encrypted filename, it reports it as a modified item and returns its filename in-clear; if the filename isn't encrypted, it doesn't return the item (for enumerateItems) or returns it as a deleted item (for enumerateChanges). This approach seems to work successfully for listing folders with a constant state; it's only if the user encrypts / decrypts a folder without currently having a Finder window open inside that folder that I'm not seeing a refresh.) Any advice on how I can force a re-enumeration without a Finder window currently being displayed?
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Dec ’25
Xcode 26.1 Simulator download fails with DVTDownloadableErrorDomain code 41 and code 49 on macOS 26.1
I'm trying to download an iOS Simulator runtime in Xcode 26.2 or 26.1 on macOS 26.1, but the download keeps failing with the following error: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 23C54;}) Domain: DVTDownloadsUtilitiesErrorDomain. Code: -1. Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 49 User Info: {checkConfiguration = 1;} macOS &amp; Xcode Info: macOS Version: 26.1 (Build 25B78) Xcode Version: 26.2 (24553) (Build 17C52) What I've tried so far: Formatted my Mac and reinstalled Xcode multiple times. Completely deleted Xcode and its related files several times (/Applications/Xcode.app, caches, preferences). Tried different internet connections from multiple locations. Checked Apple servers and verified network. Attempted downloading other simulator runtimes (fail). but download fails immediately with DVTDownloadableErrorDomain Code 41 and bad URL error. Question: How can I fix the simulator download issue in Xcode 26.2 on macOS 26.1? Is there a known workaround for the bad URL / catalog download error?
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Jan ’26
Xcode 26 beta 5 - actool version decode error killing CI builds
Getting a weird build failure with Xcode 26 beta 5 that I haven't seen before. Build works fine locally but fails in CI when building with xcodebuild with this error: build description signature: 7cb0bf47dd6decc14090f5ae23d66594 Build description path: /Users/user/Library/Developer/Xcode/DerivedData/ProjectName-dpklhpaqruhpwdbkihszqtqogzfb/Build/Intermediates.noindex/XCBuildData/7cb0bf47dd6decc14090f5ae23d66594.xcbuilddata error: Failed to decode version info for '/Applications/Xcode-beta.app/Contents/Developer/usr/bin/actool': The data couldn’t be read because it is missing. (stdout: '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>com.apple.ibtool.version</key> <dict> <key>bundle-version</key> <string>24118.1</string> <key>short-bundle-version</key> <string>26.0</string> </dict> </dict> </plist> ', stderr: '' The thing is, the data is definitely there - actool is outputting valid XML: <key>com.apple.ibtool.version</key> <dict> <key>bundle-version</key> <string>24118.1</string> <key>short-bundle-version</key> <string>26.0</string> </dict> But xcodebuild keeps saying it's missing. This error repeats like 15 times in the build log. Build command: set -o pipefail && xcodebuild -workspace "ProjectName/ProjectName.xcworkspace" -scheme "ProjectNameDeviceTests" -configuration "Debug" -destination "generic/platform=iOS" -resultBundlePath "Build for device/result_bundle.xcresult" -verbose TREAT_WARNINGS_AS_ERRORS=YES COMPILER_INDEX_STORE_ENABLE=NO -IDEBuildLocationStyle=Custom -IDECustomBuildLocationType=Absolute -IDECustomBuildProductsPath="$PWD/test_package" OTHER_SWIFT_FLAGS='${inherited} -Xfrontend -debug-time-function-bodies -Xfrontend -debug-time-expression-type-checking' SWIFT_COMPILATION_MODE=wholemodule clean build-for-testing The issue seems to come and go, sometimes cleaning the derived data and/or reset helps, sometimes it doesn't. Anyone else hitting this? Seems like a parsing bug in the beta where it can't read its own version info properly.
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Aug ’25
Has Apple officially not noticed this issue? can't download iOS 26.2 Simulator
I’m using macOS Tahoe 26, and Xcode is version 26.2. I’ve tried all the methods suggested online, but I still can’t download it. In addition, iOS 26.* and iOS 18.* simulators also fail to download. The error messages are shown below. Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2026-01-06 01:25:11 +0000"; } Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 23C54; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 Download failed due to a general networking error. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 47 User Info: { tryAgainLater = 1; } System Information macOS Version 26.0 (Build 25A354) Xcode 26.2 (24553) (Build 17C52) Timestamp: 2026-01-06T09:25:11+08:00
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Jan ’26
XCode 12 - Can't login to Github without Access Token???
Hey, so I wanted to pull from the Github project repository and XCode asked me login again. Forgot my password so I tried a wrong one and now it keeps asking for my Username and Access token, when I actually just want to login with my password. Doesn't let me choose between the too, not even when adding the account through preferences. Anyone know how to just login with password and the reason for this -pardon me- absolutely idiotic choice of not letting the user choose?
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Feb ’26
Xcode 16.3 repeatedly log causing CPU leak
Xcode 16.3 repeatedly logs a same message very frequently, as fast as a single thread can. I use Instruments and Console and find out the log is: Needs flush! by -[DNTBrotliDecoder decodeBytes:length:] in DNTDocumentationSupport. The call is on a single non-main thread. I've tried to clear caches and it seems doesn't change. Yet I don't know exact point when the logging starts since launch. Fortunately, this thread is dispatched at E cores, bringing approximately 2 watts of power load to my Mac. Environments: macOS 15.4 (24E248) Xcode 16.3 (16E140) M4 chip
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May ’25
Unable to Verify Code Signature with Error 0xe8008018 Despite Troubleshooting Attempts
Hello everyone, I am encountering a persistent issue with Xcode where I’m unable to install my app on a testing device due to the following error message: Failed to verify code signature of /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.SznYNY/extracted/iForC.app : 0xe8008018 (The identity used to sign the executable is no longer valid.) Here’s what I have tried so far to resolve this issue: 1. Ensured that all my certificates and provisioning profiles are current and valid. 2. Removed all related certificates from my Keychain and reinstalled new ones. 3. Cleaned and rebuilt the project multiple times. 4. Unpaired the device and paired it again. 5. Reinstalled the latest version of Xcode. 6. Performed a complete restore of my Mac. Despite these troubleshooting steps, I am still facing the same issue. I would greatly appreciate any insights or experiences related to this error from anyone who has overcome similar challenges. Thank you in advance for your help!
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Jan ’26
How to delete iOS simulator runtimes?
There are multiple iOS simulator runtimes located at /System/Library/AssetsV2/com_apple_MobileAsset_iOSSimulatorRuntime which I don't need. I tried the following approaches to delete them but not working. Xcode > Settings > Components > Delete (It can delete some but not all of them) xcrun simctl runtime list (It doesn't show the old runtimes) sudo rm (Operation not permitted) sudo rm -rf cc1f035290d244fca4f74d9d243fcd02d2876c27.asset Password: rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/AssetData/096-69246-684.dmg: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/AssetData: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/Info.plist: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/version.plist: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset: Operation not permitted I have two questions: Why "xcrun simctl runtime list" is unable to list some old runtimes? How to delete them?
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Xcode 26 Beta Rebooting Problems
Hi, I've been running Xcode 26 beta ever since Beta 1 and haven't had rebooting problems. Now with Xcode beta (Version 26.0 beta 4 (17A5285i)) I'll be working on a project when the system (Mac mini 2025) suddenly reboots itself. This has been going on since beta 3. I am also running MacOS 26.0 Beta (25A5316i). I have filed a bug report. Is anyone else having this problem? Thanks, Dan Uff
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Jul ’25
How does one figure out the Team ID for their Personal Team
I can find the Team ID for a registered development account by going to:developer.apple.com &gt; Account &gt; Membership &gt; Team IDI'm sure that a similar ID exists for the Personal Team. If I select my personal team in xcode and then open MyProject.xcodeproj &gt; project.pbxproj, I can find said ID by looking for DEVELOPMENT_TEAM. But this is a rather hacky way to find my personal team ID. Are there other simpler ways to find it?
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Jan ’26
Is it possible to view Xcode output from a scheme's archive post actions's script
In Xcode I've: select Product / Scheme / Edit scheme tap on Archive on the left hand side of the select post actions and + to add a new script Then in there I have added a script I want to run on the archive after its created. I'd like to be able to see the output the script churns out as it goes along but doesn't seem possible? If I just add something like echo "hello" to the start of the script then I don't see "hello" visible anywhere when I build an archive (via Product/Archive). I'm looking in the build navigator. Is there somewhere else to look or is it possible to get the logging into the navigator?
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Oct ’25
Xcode 26 Beta 3: missing Metal Toolchain
Hello community, After unable to use Metal Toolchain for Xcode Beta 1 and 2 even after following the workarounds, and using Xcode Beta 3, I am still unable to use the downloaded Metal Compiler on my device. Building any project with metal file results in warning: Could not read serialized diagnostics file: error("Failed to open diagnostics file") (in target '<target>' from project '<project>') error: error: cannot execute tool 'metal' due to missing Metal Toolchain; use: xcodebuild -downloadComponent MetalToolchain Command CompileMetalFile failed with a nonzero exit code Here is my build environment, $ xcodebuild -version Xcode 26.0 Build version 17A5276g I have also checked the downloaded metal toolchain. $ xcodebuild -downloadComponent metalToolchain -exportPath /tmp/MyMetalExport/ 2025-07-13 13:16:17.293 xcodebuild[2153:34019] IDEDownloadableMetalToolchainCoordinator: Failed to remount the Metal Toolchain: The file “com.apple.MobileAsset.MetalToolchain-v17.1.5276.7.3KEJwX” couldn’t be opened because you don’t have permission to view it. Beginning asset download... 2025-07-13 13:16:17.427 xcodebuild[2153:34022] IDEDownloadableMetalToolchainCoordinator: Failed to remount the Metal Toolchain: The file “com.apple.MobileAsset.MetalToolchain-v17.1.5276.7.3KEJwX” couldn’t be opened because you don’t have permission to view it. Downloaded asset to: /System/Library/AssetsV2/com_apple_MobileAsset_MetalToolchain/47af11e2964f385d510c6a9d1a49c8165f334a51.asset/AssetData/Restore/022-19457-052.dmg Beginning asset export... Done exporting: /tmp/MyMetalExport/MetalToolchain-17A5276g.exportedBundle Done downloading: Metal Toolchain 17A5276g. The ExportMetadata.plist has a buildUpdateVersion of 17A5276g. Any suggestions are greatly appreciated.
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Sep ’25
Using an API key with xcodebuild commands for Enterprise builds
Hey folks, Looking for some assistance with using an API key with xcodebuild commands to archive/export builds on our Enterprise developer account. The goal here is to allow Xcode to completely manage signing/certificates with our cloud distribution certificate, since these builds are happening in CI and we don't want to be manually handling user sessions/certificates on these machines. This is working great with our App Store account, but with our Enterprise account we're getting errors both archiving and exporting the builds. Here's an example of an export command that is giving errors: xcodebuild -exportArchive -exportOptionsPlist /path/to/exportOptions.plist -archivePath /path/to/archive.xcarchive -exportPath /path/to/export -authenticationKeyID *** -authenticationKeyIssuerID *** -authenticationKeyPath /path/to/key.p8 -allowProvisioningUpdates I've put some example values there, but we've double/triple checked the real values when this is actually running. These are the errors we're getting: 2026-02-02 12:30:04.022 xcodebuild[59722:1854348] DVTServices: Received response for 0794248F-E534-474D-ABBF-40C1375B6590 @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} 2026-02-02 12:30:04.173 xcodebuild[59722:1854348] DVTServices: Received response for 1D51FCD1-1876-4881-BE89-DD44E78EA776 @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} 2026-02-02 12:30:04.322 xcodebuild[59722:1854344] DVTServices: Received response for 25D7983F-1153-47C9-AE8A-03A8D10B6453 @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} 2026-02-02 12:30:04.483 xcodebuild[59722:1854344] DVTServices: Received response for 8A56C98B-E786-4878-856F-4D7E3D381DEA @ <https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA>. Error = Error Domain=DVTPortalResponseErrorDomain Code=0 "Communication with Apple failed" UserInfo={NSLocalizedDescription=Communication with Apple failed, NSLocalizedRecoverySuggestion=A non-HTTP 200 response was received (401) for URL https://appstoreconnect.apple.com/xcbuild/QH65B2/listTeams.action?clientId=XABBG36SBA} error: exportArchive Communication with Apple failed error: exportArchive No signing certificate "iOS Distribution" found We get very similar errors when archiving as well. Are we doing something incorrect here? Is API key usage with xcodebuild not supported for Enterprise builds? Appreciate any help y'all can provide!
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3
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304
Activity
Feb ’26
Icon Composer TestFlight
Can we use Icon Composer to drive an app icon for iOS 26 apps today? I get errors uploading a build to TestFlight internal testing about missing App icon dimensions for an iOS 26 app.
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0
Boosts
3
Views
155
Activity
Jun ’25
MCP servers don’t start in Codex (Xcode 26.3)
I’m trying to use MCP servers with Xcode 26.3 Coding Intelligence (Codex agent). With a project-scoped config file at /.codex/config.toml, MCP servers are not reliably loaded. /.codex/config.toml Example: [mcp_servers.Notion] url = "https://mcp.notion.com/mcp" enabled = true [mcp_servers.XcodeBuildMCP] command = "/bin/zsh" args = ["-lc", "/opt/homebrew/bin/npx -y xcodebuildmcp@beta mcp"] enabled = true tool_timeout_sec = 10000 Expected: Xcode consistently loads MCP servers defined in /.codex/config.toml across restarts. Actual: Xcode often only exposes xcode-tools. In some sessions MCP servers appear, but after restarting Xcode they may disappear. The global file at ~/Library/Developer/Xcode/CodingAssistant/codex/config.toml also seems managed/rewritten by Xcode and isn’t reliable for custom MCP servers. Questions Is /.codex/config.toml the official/supported way to configure MCP servers for Codex in Xcode right now? Are there any requirements for Xcode to load it (e.g. workspace must be Trusted, open .xcworkspace vs .xcodeproj, full restart/force quit, etc.)? Is there any logging/diagnostics to understand why the MCP server is not starting or not being picked up?
Replies
0
Boosts
3
Views
198
Activity
Feb ’26
Application Hangs with Nested LazyVStack When Accessibility Inspector is Active
Description I've encountered a consistent hang/freeze issue in SwiftUI applications when using nested LazyVStack containers with Accessibility Inspector (simulator) or VoiceOver (physical device) enabled. The application becomes completely unresponsive and must be force-quit. Importantly, this hang occurs in a minimal SwiftUI project with no third-party dependencies, suggesting this is a framework-level issue with the interaction between SwiftUI's lazy view lifecycle and the accessibility system. Reproduction Steps I've created a minimal reproduction project available here: https://github.com/pendo-io/SwiftUI_Hang_Reproduction To Reproduce: Create a SwiftUI view with the following nested LazyVStack structure: struct NestedLazyVStackView: View { @State private var outerSections: [Int] = [] @State private var innerRows: [Int: [Int]] = [:] var body: some View { ScrollView { LazyVStack(alignment: .leading, spacing: 24) { ForEach(outerSections, id: \.self) { section in VStack(alignment: .leading, spacing: 8) { Text("Section #\(section)") // Nested LazyVStack LazyVStack(alignment: .leading, spacing: 2) { ForEach(innerRows[section] ?? [], id: \.self) { row in Text("Section #\(section) - Row #\(row)") .onAppear { // Load more data when row appears loadMoreInner(section: section) } } } } .onAppear { // Load more sections when section appears loadMoreOuter() } } } } } } Enable Accessibility Inspector in iOS Simulator: Xcode → Open Developer Tool → Accessibility Inspector Select your running simulator Enable Inspection mode (eye icon) Navigate to the view and start scrolling Result: The application hangs and becomes unresponsive within a few seconds of scrolling Expected Behavior The application should remain responsive when Accessibility Inspector or VoiceOver is enabled, allowing users to scroll through nested lazy containers without freezing. Actual Behavior The application freezes/hangs completely CPU usage may spike The app must be force-quit to recover The hang occurs consistently and is reproducible Workaround 1: Replace inner LazyVStack with VStack LazyVStack { ForEach(...) { section in VStack { // ← Changed from LazyVStack ForEach(...) { row in ... } } } } Workaround 2: Embed in TabView TabView { NavigationStack { NestedLazyVStackView() // ← Same nested structure, but no hang } .tabItem { ... } } Interestingly, wrapping the entire navigation stack in a TabView prevents the hang entirely, even with the nested LazyVStack structure intact. Questions for Apple Is there a known issue with nested LazyVStack containers and accessibility traversal? Why does wrapping the view in a TabView prevent the hang? Are there recommended patterns for using nested lazy containers with accessibility support? Is this a timing issue, a deadlock, or an infinite loop in the accessibility system? Why that happens? Reproduction Project A complete, minimal reproduction project is available at: https://github.com/pendo-io/SwiftUI_Hang_Reproduction
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4
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0
Views
400
Activity
Feb ’26
Xcode Message: Message send exceeds rate-limit threshold and will be dropped
I'm getting hundreds of the message below in Xcode. I've narrowed it down to when I instantiate the following AVAudioUnitComponentManager.shared() Message send exceeds rate-limit threshold and will be dropped. { reporterID=231700600717315, rateLimit=32hz }
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2
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1
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898
Activity
Sep ’25
FileProvider fails to trigger re-enumeration
I'm working on a FileProvider which allows access to encrypted files in Dropbox; I can successfully read and present the decrypted files, so I know it's basically working. But I'm having problems getting FileProvider to re-enumerate a folder when its encryption status changes. When the FileProvider receives an update notification saying a folder is now encrypted, I use signalEnumerator to re-enumerate the folder: FileProviderExtension.manager?.signalEnumerator(for: existingItem.itemIdentifier, completionHandler: { (ourError : Error?) -> Void in       if let ourError = ourError {           log("notifyCallback: mount / unmount failed re-enumeration: \(ourError)")       } else {           log("notifyCallback: mount / unmount signalled re-enumeration; pending")       } }) The log reports that the re-enumeration is pending... but as far as I can tell, neither enumerateItems nor enumerateChanges is called on the folder's item unless a Finder window is actually open for that folder. This means that, when an app other than Finder tries to access the files through the filesystem, it doesn't see the updated set of filenames. (For further reference: I've added code to both enumerateItems and enumerateChanges, so that if the call has been triggered by a recent folder-encryption notification, it retrieves a complete set of items from the Dropbox folder. If a retrieved file has an encrypted filename, it reports it as a modified item and returns its filename in-clear; if the filename isn't encrypted, it doesn't return the item (for enumerateItems) or returns it as a deleted item (for enumerateChanges). This approach seems to work successfully for listing folders with a constant state; it's only if the user encrypts / decrypts a folder without currently having a Finder window open inside that folder that I'm not seeing a refresh.) Any advice on how I can force a re-enumeration without a Finder window currently being displayed?
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2
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2
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1.5k
Activity
Dec ’25
Xcode 26.1 Simulator download fails with DVTDownloadableErrorDomain code 41 and code 49 on macOS 26.1
I'm trying to download an iOS Simulator runtime in Xcode 26.2 or 26.1 on macOS 26.1, but the download keeps failing with the following error: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 23C54;}) Domain: DVTDownloadsUtilitiesErrorDomain. Code: -1. Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 49 User Info: {checkConfiguration = 1;} macOS &amp; Xcode Info: macOS Version: 26.1 (Build 25B78) Xcode Version: 26.2 (24553) (Build 17C52) What I've tried so far: Formatted my Mac and reinstalled Xcode multiple times. Completely deleted Xcode and its related files several times (/Applications/Xcode.app, caches, preferences). Tried different internet connections from multiple locations. Checked Apple servers and verified network. Attempted downloading other simulator runtimes (fail). but download fails immediately with DVTDownloadableErrorDomain Code 41 and bad URL error. Question: How can I fix the simulator download issue in Xcode 26.2 on macOS 26.1? Is there a known workaround for the bad URL / catalog download error?
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2
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3
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620
Activity
Jan ’26
Xcode 26 beta 5 - actool version decode error killing CI builds
Getting a weird build failure with Xcode 26 beta 5 that I haven't seen before. Build works fine locally but fails in CI when building with xcodebuild with this error: build description signature: 7cb0bf47dd6decc14090f5ae23d66594 Build description path: /Users/user/Library/Developer/Xcode/DerivedData/ProjectName-dpklhpaqruhpwdbkihszqtqogzfb/Build/Intermediates.noindex/XCBuildData/7cb0bf47dd6decc14090f5ae23d66594.xcbuilddata error: Failed to decode version info for '/Applications/Xcode-beta.app/Contents/Developer/usr/bin/actool': The data couldn’t be read because it is missing. (stdout: '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>com.apple.ibtool.version</key> <dict> <key>bundle-version</key> <string>24118.1</string> <key>short-bundle-version</key> <string>26.0</string> </dict> </dict> </plist> ', stderr: '' The thing is, the data is definitely there - actool is outputting valid XML: <key>com.apple.ibtool.version</key> <dict> <key>bundle-version</key> <string>24118.1</string> <key>short-bundle-version</key> <string>26.0</string> </dict> But xcodebuild keeps saying it's missing. This error repeats like 15 times in the build log. Build command: set -o pipefail && xcodebuild -workspace "ProjectName/ProjectName.xcworkspace" -scheme "ProjectNameDeviceTests" -configuration "Debug" -destination "generic/platform=iOS" -resultBundlePath "Build for device/result_bundle.xcresult" -verbose TREAT_WARNINGS_AS_ERRORS=YES COMPILER_INDEX_STORE_ENABLE=NO -IDEBuildLocationStyle=Custom -IDECustomBuildLocationType=Absolute -IDECustomBuildProductsPath="$PWD/test_package" OTHER_SWIFT_FLAGS='${inherited} -Xfrontend -debug-time-function-bodies -Xfrontend -debug-time-expression-type-checking' SWIFT_COMPILATION_MODE=wholemodule clean build-for-testing The issue seems to come and go, sometimes cleaning the derived data and/or reset helps, sometimes it doesn't. Anyone else hitting this? Seems like a parsing bug in the beta where it can't read its own version info properly.
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2
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3
Views
244
Activity
Aug ’25
Has Apple officially not noticed this issue? can't download iOS 26.2 Simulator
I’m using macOS Tahoe 26, and Xcode is version 26.2. I’ve tried all the methods suggested online, but I still can’t download it. In addition, iOS 26.* and iOS 18.* simulators also fail to download. The error messages are shown below. Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2026-01-06 01:25:11 +0000"; } Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({ RequestedBuild = 23C54; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 Download failed due to a general networking error. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 47 User Info: { tryAgainLater = 1; } System Information macOS Version 26.0 (Build 25A354) Xcode 26.2 (24553) (Build 17C52) Timestamp: 2026-01-06T09:25:11+08:00
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1
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3
Views
399
Activity
Jan ’26
XCode 12 - Can't login to Github without Access Token???
Hey, so I wanted to pull from the Github project repository and XCode asked me login again. Forgot my password so I tried a wrong one and now it keeps asking for my Username and Access token, when I actually just want to login with my password. Doesn't let me choose between the too, not even when adding the account through preferences. Anyone know how to just login with password and the reason for this -pardon me- absolutely idiotic choice of not letting the user choose?
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9
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1
Views
22k
Activity
Feb ’26
Xcode 16.3 repeatedly log causing CPU leak
Xcode 16.3 repeatedly logs a same message very frequently, as fast as a single thread can. I use Instruments and Console and find out the log is: Needs flush! by -[DNTBrotliDecoder decodeBytes:length:] in DNTDocumentationSupport. The call is on a single non-main thread. I've tried to clear caches and it seems doesn't change. Yet I don't know exact point when the logging starts since launch. Fortunately, this thread is dispatched at E cores, bringing approximately 2 watts of power load to my Mac. Environments: macOS 15.4 (24E248) Xcode 16.3 (16E140) M4 chip
Replies
7
Boosts
3
Views
423
Activity
May ’25
Unable to Verify Code Signature with Error 0xe8008018 Despite Troubleshooting Attempts
Hello everyone, I am encountering a persistent issue with Xcode where I’m unable to install my app on a testing device due to the following error message: Failed to verify code signature of /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.SznYNY/extracted/iForC.app : 0xe8008018 (The identity used to sign the executable is no longer valid.) Here’s what I have tried so far to resolve this issue: 1. Ensured that all my certificates and provisioning profiles are current and valid. 2. Removed all related certificates from my Keychain and reinstalled new ones. 3. Cleaned and rebuilt the project multiple times. 4. Unpaired the device and paired it again. 5. Reinstalled the latest version of Xcode. 6. Performed a complete restore of my Mac. Despite these troubleshooting steps, I am still facing the same issue. I would greatly appreciate any insights or experiences related to this error from anyone who has overcome similar challenges. Thank you in advance for your help!
Replies
13
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3
Views
8.0k
Activity
Jan ’26
How to delete iOS simulator runtimes?
There are multiple iOS simulator runtimes located at /System/Library/AssetsV2/com_apple_MobileAsset_iOSSimulatorRuntime which I don't need. I tried the following approaches to delete them but not working. Xcode > Settings > Components > Delete (It can delete some but not all of them) xcrun simctl runtime list (It doesn't show the old runtimes) sudo rm (Operation not permitted) sudo rm -rf cc1f035290d244fca4f74d9d243fcd02d2876c27.asset Password: rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/AssetData/096-69246-684.dmg: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/AssetData: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/Info.plist: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset/version.plist: Operation not permitted rm: cc1f035290d244fca4f74d9d243fcd02d2876c27.asset: Operation not permitted I have two questions: Why "xcrun simctl runtime list" is unable to list some old runtimes? How to delete them?
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3
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2
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797
Activity
2w
Xcode 26 Beta Rebooting Problems
Hi, I've been running Xcode 26 beta ever since Beta 1 and haven't had rebooting problems. Now with Xcode beta (Version 26.0 beta 4 (17A5285i)) I'll be working on a project when the system (Mac mini 2025) suddenly reboots itself. This has been going on since beta 3. I am also running MacOS 26.0 Beta (25A5316i). I have filed a bug report. Is anyone else having this problem? Thanks, Dan Uff
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3
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3
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269
Activity
Jul ’25
XCode crashing in VIM Mode while deleting the complete line with double tap of "d"
I have been using Xcode Version 26.1.1 on macOS Tahoe Version 26.1. In VIM mode, whenever I quickly tap d twice, to delete the complete line, most of the time Xcode crashes. Is anyone else facing this issue? Should I move to any older version of Xcode or any other solve for this?
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2
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3
Views
150
Activity
Dec ’25
How does one figure out the Team ID for their Personal Team
I can find the Team ID for a registered development account by going to:developer.apple.com &gt; Account &gt; Membership &gt; Team IDI'm sure that a similar ID exists for the Personal Team. If I select my personal team in xcode and then open MyProject.xcodeproj &gt; project.pbxproj, I can find said ID by looking for DEVELOPMENT_TEAM. But this is a rather hacky way to find my personal team ID. Are there other simpler ways to find it?
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1
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3
Views
3.7k
Activity
Jan ’26
Cannot select individual view in selectable mode
Cannot select individual view in selectable mode in Xcode preview, it only show the whole blue device border.
Replies
4
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2
Views
1k
Activity
Jul ’25
Xcode 26 archive fails
The project builds successfully but unable to archive project on Xcode 26. error: "Command SwiftCompile failed with a nonzero exit code"
Replies
4
Boosts
2
Views
239
Activity
Jun ’25
Is it possible to view Xcode output from a scheme's archive post actions's script
In Xcode I've: select Product / Scheme / Edit scheme tap on Archive on the left hand side of the select post actions and + to add a new script Then in there I have added a script I want to run on the archive after its created. I'd like to be able to see the output the script churns out as it goes along but doesn't seem possible? If I just add something like echo "hello" to the start of the script then I don't see "hello" visible anywhere when I build an archive (via Product/Archive). I'm looking in the build navigator. Is there somewhere else to look or is it possible to get the logging into the navigator?
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1
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2
Views
179
Activity
Oct ’25
Xcode 26 Beta 3: missing Metal Toolchain
Hello community, After unable to use Metal Toolchain for Xcode Beta 1 and 2 even after following the workarounds, and using Xcode Beta 3, I am still unable to use the downloaded Metal Compiler on my device. Building any project with metal file results in warning: Could not read serialized diagnostics file: error("Failed to open diagnostics file") (in target '<target>' from project '<project>') error: error: cannot execute tool 'metal' due to missing Metal Toolchain; use: xcodebuild -downloadComponent MetalToolchain Command CompileMetalFile failed with a nonzero exit code Here is my build environment, $ xcodebuild -version Xcode 26.0 Build version 17A5276g I have also checked the downloaded metal toolchain. $ xcodebuild -downloadComponent metalToolchain -exportPath /tmp/MyMetalExport/ 2025-07-13 13:16:17.293 xcodebuild[2153:34019] IDEDownloadableMetalToolchainCoordinator: Failed to remount the Metal Toolchain: The file “com.apple.MobileAsset.MetalToolchain-v17.1.5276.7.3KEJwX” couldn’t be opened because you don’t have permission to view it. Beginning asset download... 2025-07-13 13:16:17.427 xcodebuild[2153:34022] IDEDownloadableMetalToolchainCoordinator: Failed to remount the Metal Toolchain: The file “com.apple.MobileAsset.MetalToolchain-v17.1.5276.7.3KEJwX” couldn’t be opened because you don’t have permission to view it. Downloaded asset to: /System/Library/AssetsV2/com_apple_MobileAsset_MetalToolchain/47af11e2964f385d510c6a9d1a49c8165f334a51.asset/AssetData/Restore/022-19457-052.dmg Beginning asset export... Done exporting: /tmp/MyMetalExport/MetalToolchain-17A5276g.exportedBundle Done downloading: Metal Toolchain 17A5276g. The ExportMetadata.plist has a buildUpdateVersion of 17A5276g. Any suggestions are greatly appreciated.
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1
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2
Views
788
Activity
Sep ’25