xcrun problem with Xcode 26 Beta 3

We are trying to run Xcode 26 Beta 3 in our CI but it gives the following error when trying to install simulators:

[04:23:37]: ▸ 2025-07-22 04:23:37.173 xcodebuild[856:11336] [MT] DVTPlugInLoading: Failed to load code for plug-in com.apple.dt.IDESimulatorFoundation (/Applications/Xcode-beta.app/Contents/Frameworks/IDESimulatorFoundation.framework), error = Error Domain=NSCocoaErrorDomain Code=3588 "dlopen(/Applications/Xcode-beta.app/Contents/Frameworks/IDESimulatorFoundation.framework/IDESimulatorFoundation, 0x0109): Library not loaded: /Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator
[04:23:37]: ▸ Referenced from: <AE950330-CC10-3EA9-8604-F0BACFEAD81B> /Applications/Xcode-beta.app/Contents/Frameworks/IDESimulatorFoundation.framework/Versions/A/IDESimulatorFoundation
[04:23:37]: ▸ Reason: tried: '/Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator' (no such file), '/Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator' (no such file)" UserInfo={NSLocalizedFailureReason=The bundle couldn’t be loaded., NSLocalizedRecoverySuggestion=Try reinstalling the bundle., NSFilePath=/Applications/Xcode-beta.app/Contents/Frameworks/IDESimulatorFoundation.framework/IDESimulatorFoundation, NSDebugDescription=dlopen(/Applications/Xcode-beta.app/Contents/Frameworks/IDESimulatorFoundation.framework/IDESimulatorFoundation, 0x0109): Library not loaded: /Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator

I tried adding everything in the book:

  • xcode-select --switch /Applications/Xcode-beta.app
  • xcodebuild -runFirstLaunch
  • xcodebuild -downloadPlatform iOS

But nothing seems to work. There is any known bug related to it in this beta? We are using macOS Sequoia.

@ricardo_abc

See How to Download IOS 26 beta runtime simulator using "xcodebuild" tool? for more information.

If the issue persists, file a bug report using Feedback Assistant.

Same problem. It also displays authentication error:

[04:04:49]: ▸ Install Started
[04:04:49]: ▸ Install Failed: Authorization is required to install the packages.

Something changed? It is working now with Xcode 16, same CI setup.

xcrun problem with Xcode 26 Beta 3
 
 
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