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Can't install Universal Simulator with Xcode-beta 5
When I try to install the iOS 26.0 Universal Simulator component with Xcode-beta 5 I get the following error: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2025-08-11 14:39:06 +0000"; } -- Download failed. Domain: DVTDownloadableErrorDomain Code: 41 -- System Information macOS Version 15.6 (Build 24G84) Xcode 26.0 (24198.5) (Build 17A5295f) Timestamp: 2025-08-11T17:39:06+03:00
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Aug ’25
Xcode Extension isn't show up in the Editor menu
https://developer.apple.com/documentation/xcodekit/creating_a_source_editor_extension I created new MacOS project and added a Xcode Source Editor Extension target to the project. I run the extension in debug mode with extension target, but the extension is not show up in Editor menu debug mode Xcode. Xcode version is 15.3(released) MacOS version is 14.4.1 Sonoma
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Mar ’25
Xcode Build Failure
Hi, I don't understand why Xcode fails to build my app when following logic was uncommented as part of ternary operator (as highlighted in attachment). Can somebody help me please ?? Thx. ... : shelterViewModel.getShelter(row: row, column: column).productId == ... ? Color.yellow ...
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Apr ’25
Xcode 16.4 can't choose a lower version iOS simulator to debug
My Xcode version is 16.4, I have added an old version simulator (iPhone 13 with iOS 17.2) to the simulator list, but I can't use it for debugging, and all on display are iPhone 16 with 18.6 (the latest iOS devices). The setting "Minimum Deployments" for my App is 16.6. In addition, when I downloaded an iOS 16.0 version simulator, Xcode automatically added all iPhone 15 models of the simulator, but I still can't use them. In short, I can only use the default iPhone 16 simulators. So, if I want to debug my App using iPhone 13 (iOS 17.2), what should I do? Thank you for your reply. :) Another small issue, my App's destination has been set to support only iPhone, why are those iPad simulators still appearing?
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Aug ’25
MetalToolchain fail installation xcode 26.0 beta 5, tahoe 26.0
Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({ RequestedBuild = 17A5295f; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 User Info: { DVTErrorCreationDateKey = "2025-08-08 07:59:24 +0000"; } Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({ RequestedBuild = 17A5295f; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 Download failed due to not being able to find the host. (Catalog download for com.apple.MobileAsset.MetalToolchain) Domain: com.apple.MobileAssetError.Download Code: 59 User Info: { checkConfiguration = 1; } System Information macOS Version 26.0 (Build 25A5327h) Xcode 26.0 (24198.5) (Build 17A5295f) Timestamp: 2025-08-08T08:59:24+01:00
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Aug ’25
Cannot start app on simulator, it's crash and show error dyld[27267]: Symbol not found:g
I build app success full, but app is crash when it's install and start on simulator, please help to resolve the issue. xcode version 16.3 dyld`__abort_with_payload: Thread 1: signal SIGABRT Console error log: dyld[27267]: Symbol not found: _$sSo18WKPDFConfigurationC6WebKitE4rectSo6CGRectVSgvs Referenced from: <9ED011A5-B4BE-3B0B-98C6-0AFAF76A5B6C> ..../Library/Developer/CoreSimulator/Devices/C94520D8-031D-4D91-8050-859E0951D1A6/data/Containers/Bundle/Application/522BF7A2-7633-4FF1-BA02-130727B8E65C/App.app/Frameworks/flutter_inappwebview_ios.framework/flutter_inappwebview_ios Expected in: <0085D0EC-09E4-3699-ACE9-9B0C20B090BB> /Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/WebKit.framework/WebKit Symbol not found: _$sSo18WKPDFConfigurationC6WebKitE4rectSo6CGRectVSgvs Referenced from: <9ED011A5-B4BE-3B0B-98C6-0AFAF76A5B6C> ..../Library/Developer/CoreSimulator/Devices/C94520D8-031D-4D91-8050-859E0951D1A6/data/Containers/Bundle/Application/522BF7A2-7633-4FF1-BA02-130727B8E65C/App.app/Frameworks/flutter_inappwebview_ios.framework/flutter_inappwebview_ios Expected in: <0085D0EC-09E4-3699-ACE9-9B0C20B090BB> /Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/WebKit.framework/WebKit dyld config: DYLD_SHARED_CACHE_DIR=.../Library/Developer/CoreSimulator/Caches/dyld/24D81/com.apple.CoreSimulator.SimRuntime.iOS-18-2.22C150 DYLD_ROOT_PATH=/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot DYLD_LIBRARY_PATH=...../Library/Developer/Xcode/DerivedData/App-fdpvmjxapalesmhcoroqmpqwlxxm/Build/Products/Debug-iphonesimulator:/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib/libLogRedirect.dylib:/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib/libBacktraceRecording.dylib:/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib/libMainThreadChecker.dylib:/usr/lib/libRPAC.dylib:/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib/libViewDebuggerSupport.dylib DYLD_FRAMEWORK_PATH=.....Library/Developer/Xcode/DerivedData/App-fdpvmjxapalesmhcoroqmpqwlxxm/Build/Products/Debug-iphonesimulator DYLD_FALLBACK_FRAMEWORK_PATH=/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks DYLD_FALLBACK_LIBRARY_PATH=/Library/Developer/CoreSimulator/Volumes/iOS_22C150/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib
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Apr ’25
Can't install Metal Toolchain component
With Xcode 26.0 beta 5 (17A5295f) when I run the following command xcodebuild -downloadComponent metalToolchain I get the following error: xcodebuild[48851:12478851] Writing error result bundle to /var/folders/b_/g67r_tl557z244g20ncr_qmsd9wrz1/T/ResultBundle_2025-07-08_11-10-0012.xcresult xcodebuild: error: Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({ RequestedBuild = 17A5295f; }) I can't install the toolchain from the Xcode GUI also. Does someone know a workaround ?
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Aug ’25
How can I use private AI agents in Xcode 26.3?
I work on some proprietary codebases and can only use private AI services with them (currently MiniMax M2.1 and GLM 4.7). It all works great with both Claude Code and OpenCode agents, and I'd like to leverage the new agentic capabilities that are now in Xcode 26.3. I'm not seeing any option to connect to OpenCode, and both the Anthropic and OpenAI providers require an enterprise account (which I don't have access to). Are there any options that I'm missing here?
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Xcode 15 will not connect to ios17 device via network
I'm unable to debug on iPhone 12 running iOS 17 beta 3 via network. I'm running Xcode 15 beta 6 Device shows in devices and simulators and I can debug when connected with cable. However the "Connect Via Network" option is frayed out, oddly however the checkbox is ticked I'm developing a app using RoomPlan so network connectivity is a must for debugging Anyone else encountered this and know how to get around this problem Other devices running iOS 16 connect via network just fine
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Mar ’25
Error Simulator Download Simulator IOS 18.2 22C5142a
I can't install Simulator 18.2 I reinstalled sometimes Xcode y always return this erro Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2025-02-15 15:41:39 +0000"; } Download failed. Domain: DVTDownloadableErrorDomain Code: 41 Failed fetching catalog for assetType (com.apple.MobileAsset.appleTVOSSimulatorRuntime), serverParameters ({ RequestedBuild = 22K5148a; }) Domain: DVTDownloadsUtilitiesErrorDomain Code: -1 Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.appleTVOSSimulatorRuntime) Domain: com.apple.MobileAssetError.Download Code: 49 User Info: { checkConfiguration = 1; } System Information macOS Version 15.2 (Build 24C101) Xcode 16.2 (23504) (Build 16C5023f) Timestamp: 2025-02-15T09:41:39-06:00
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Mar ’25
Problems installing iOS 18.4 SDK on Intel iMac
Hi! I'm having problems installing the iOS 18.4 SDK for Xcode. The installation fails from within Xcode or from the command line with the following error message: $ xcodebuild -downloadPlatform iOS Downloading iOS 18.4 Simulator (22E238): Preparing to download...2025-04-05 10:16:50.451 xcodebuild[7138:103696] DVTDownloadable: Observed finish. Cancelling download asset. { assetId = 6fb1e5fe25ee1c372f7116516e615c556906bd4e; assetIdHash = 9d684dee0a7bae81ba9c4f79475976f41789eaf3; assetType = "com.apple.MobileAsset.iOSSimulatorRuntime"; attributesHash = 99e0653b3c175e32d4a045cb9be856573b2938c1; contentHash = d4aad730490a4476d8179d4cdb7c1fcae8dd388a; nonIdHash = be7dd5950580ff7c8e1f822b24bd76d58c08b8aa; pallasDynamicAssetIdHash = d7904ac1d93cc3702244074c49aafad923a6e2b4; policyHash = d3700ca0e5058eb1d7b21fd74b1c225a66f5e74e; urlHash = fc93246f74e44ae2b94a727bfd9bac228f69f961; }, error: (null) Downloading iOS 18.4 Simulator (22E238): Error: Error Domain=SimDiskImageErrorDomain Code=5 "(-67061 invalid signature (code or signature have been modified)" UserInfo={NSLocalizedDescription=(-67061 invalid signature (code or signature have been modified), unusableErrorDetail=} When trying to install in Xcode I get the following error message: Any idea on how to get this fixed is appreciated!
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Apr ’25
File download not working in Xcode 26.0 RC
Hello Apple Developer Community, I'm experiencing an issue with file download functionality in the iOS Simulator after updating to Xcode 26 RC (Build 17A321). Issue Description: When attempting to download files in the iOS Simulator via Safari, the download prompt appears correctly, but after tapping the 'Download' button, files are not being saved to the Files app. The download appears to do nothing with no error message, no indication of failure, but the file simply doesn't appear in Downloads or anywhere in the Files app. Environment: Xcode Version: 26.0 RC (17A321) iOS Simulator Version: 26.0 RC (23A339) Device Simulated: iPhone Air Steps to Reproduce: Open Safari in the iOS Simulator Navigate to a downloadable file (PDF, ZIP, etc.) Tap to initiate download Download prompt appears as expected Tap the 'Download' button Check the Files app → Downloads folder (empty) Expected Behavior: Files should download normally as they do on physical devices and as they did in previous Xcode versions. Actual Behavior: The download prompt dismisses after tapping 'Download', but no file appears in the Files app. No error message is shown, and there's no indication that the download failed, it simply appears as if nothing happened. Additional Information: Downloads work correctly on physical device (iOS 26 RC 23A340) This functionality worked properly in previous Xcode versions I have created a bug report to Feedback assistant: FB20190927 Thanks in advance for any assistance.
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Oct ’25
Simulator frozen while Xcode debugger attached
I'm on Xcode 16.3 (16E140), using iPhone 16 Pro Simulator with iOS 18.4, on macOS Sequoia 15.4. Today is the first time using this particular configuration. On Friday I was using Xcode 16.2, simulator on 17.5, macOS 15.3.2. This morning while running the app in the debugger I get times where I pause in using the app, perhaps to look up some information or make some notes, then go back to the simulator and nothing works. It is just frozen. Tap tap tap all day long and nothing responds. In the Xcode console I get this over and over while the simulator doesn't respond. nw_protocol_socket_set_no_wake_from_sleep [C100.1.1:2] setsockopt SO_NOWAKEFROMSLEEP failed [22: Invalid argument] nw_protocol_socket_set_no_wake_from_sleep setsockopt SO_NOWAKEFROMSLEEP failed [22: Invalid argument] I then hit the "Stop" button in Xcode debugger and get this in console <0x10843a0b0> Gesture: System gesture gate timed out. XPC connection interrupted Message from debugger: Xcode has killed the LLDB RPC server to allow the debugger to detach from your process. You may need to manually terminate your process. The Simulator springs to life immediately. It even seems to have queued up my most recent inputs and happily accepts them and processes them as normal.
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Apr ’25
Apple watch Xcode pairing & connection issues
I’m blocked debugging a watchOS app on a physical Apple Watch. The iPhone connects to Xcode normally (wired), but the Watch either fails to connect with a tunnel timeout or disappears entirely from Xcode after I unpaired it inside Devices & Simulators. Environment Mac: macOS 26.x (Apple Silicon Mac) Xcode: 26.2 iPhone: iOS 26.1 Apple Watch Ultra: watchOS 26.2 (build 23S303) Connection: iPhone connected to Mac via USB (trusted). Watch paired to iPhone and working normally in the Watch app. Issue A (when Watch is visible in Xcode) In Xcode → Window → Devices and Simulators, the Watch shows up but is not usable and fails to connect. Error: “Previous preparation error: A connection to this device could not be established.” “Timed out while attempting to establish tunnel using negotiated network parameters.” In some attempts the Watch shows “Capacity: Unknown” / limited details, and then fails during preparation. Issue B (after unpairing Watch in Xcode only) I unpaired/removed the Watch in Xcode (Devices & Simulators). I did not unpair the Watch from the iPhone. Now: iPhone appears in Xcode and works normally for builds. Watch is still paired to the iPhone and works normally. Watch no longer appears anywhere in Xcode Devices & Simulators (no paired watch section, no watch run destination). What I’ve tried Reboots of Mac, iPhone, Watch (multiple times) Watch unlocked, awake; iPhone unlocked and close to Watch Verified Watch is paired and connected in iPhone Watch app Developer Mode enabled on iPhone and Watch Wi-Fi and Bluetooth ON (Mac/iPhone/Watch), tried toggling both Tried on home Wi-Fi and also with iPhone hotspot (same result) Resetting trust prompts / reconnecting iPhone via USB, re-trusting Mac Apple Watch: “Clear Trusted Computers” Xcode: removing/re-adding devices; clearing derived data; restarting Xcode Watch Developer networking test: Responsiveness = Medium (430 RPM) Questions 1. Is this a known issue/regression with Xcode 26.2 + watchOS 26.2 tunneling (CoreDevice / devicectl)? 2. Is there an Apple-supported way to force Xcode to re-discover a paired Watch after it was removed from Xcode Devices & Simulators (without unpairing the Watch from the iPhone)? 3. Any recommended logs or diagnostic steps I should collect (Console logs, sysdiagnose, specific Xcode/CoreDevice logs) to include in a Feedback report? If helpful, I can provide the full error text from Xcode’s Devices window and any logs you recommend. Thank you in advance,
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