I have just got my first MacBook and am trying to run a Flutter project using VSCode. The project runs fine on an Android Emulator but doesn't on iOS Simulator.

Here's the log:

Launching lib/main.dart on iPhone 16 Pro in debug mode...
Xcode build done.                                            8.9s
Failed to build iOS app
Uncategorized (Xcode): Command SwiftGeneratePch emitted errors but did not return a nonzero exit code to indicate failure

Error (Xcode): no such file or directory: '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'

Error (Xcode): stat cache file '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/SDKStatCaches.noindex/iphonesimulator18.2-22C146-07b28473f605e47e75261259d3ef3b5a.sdkstatcache' not found

Error (Xcode): unable to rename temporary '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/1QOPLZ3HJICL2/UIKit-1KHQ7M05IFVXC-026d8a9d.pcm.tmp' to output file '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/1QOPLZ3HJICL2/UIKit-1KHQ7M05IFVXC.pcm': 'No such file or directory'

Error (Xcode): could not build module 'UIKit'
/Users/sm-sayedi/Projects/web/flutter/test_app/build/ios/Debug-iphonesimulator/Flutter.framework/Headers/FlutterAppDelegate.h:7:8

Error (Xcode): could not build module 'Flutter'
/Users/sm-sayedi/Projects/web/flutter/test_app/ios/Runner/GeneratedPluginRegistrant.h:9:8

Error (Xcode): failed to emit precompiled header '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/Runner-chzjlziqevvgrcgaoauskndbtofm/Build/Intermediates.noindex/PrecompiledHeaders/Runner-Bridging-Header-swift_1OW9P6QJWPL3W-clang_1QOPLZ3HJICL2.pch' for bridging header '/Users/sm-sayedi/Projects/web/flutter/test_app/ios/Runner/Runner-Bridging-Header.h'

Uncategorized (Xcode): Command PrecompileSwiftBridgingHeader emitted errors but did not return a nonzero exit code to indicate failure

Swift Compiler Error (Xcode): No such file or directory: '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'

Swift Compiler Error (Xcode): Stat cache file '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/SDKStatCaches.noindex/iphonesimulator18.2-22C146-07b28473f605e47e75261259d3ef3b5a.sdkstatcache' not found

Swift Compiler Error (Xcode): Clang importer creation failed

Uncategorized (Xcode): Command SwiftEmitModule failed with a nonzero exit code

Could not build the application for the simulator.
Error launching application on iPhone 16 Pro.

Exited (1).

I have just got my first MacBook and am trying to run a Flutter project using VSCode. The project runs fine on an Android Emulator but doesn't on iOS Simulator.

Here's the log:

Launching lib/main.dart on iPhone 16 Pro in debug mode...
Xcode build done.                                            8.9s
Failed to build iOS app
Uncategorized (Xcode): Command SwiftGeneratePch emitted errors but did not return a nonzero exit code to indicate failure

Error (Xcode): no such file or directory: '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'

Error (Xcode): stat cache file '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/SDKStatCaches.noindex/iphonesimulator18.2-22C146-07b28473f605e47e75261259d3ef3b5a.sdkstatcache' not found

Error (Xcode): unable to rename temporary '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/1QOPLZ3HJICL2/UIKit-1KHQ7M05IFVXC-026d8a9d.pcm.tmp' to output file '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/1QOPLZ3HJICL2/UIKit-1KHQ7M05IFVXC.pcm': 'No such file or directory'

Error (Xcode): could not build module 'UIKit'
/Users/sm-sayedi/Projects/web/flutter/test_app/build/ios/Debug-iphonesimulator/Flutter.framework/Headers/FlutterAppDelegate.h:7:8

Error (Xcode): could not build module 'Flutter'
/Users/sm-sayedi/Projects/web/flutter/test_app/ios/Runner/GeneratedPluginRegistrant.h:9:8

Error (Xcode): failed to emit precompiled header '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/Runner-chzjlziqevvgrcgaoauskndbtofm/Build/Intermediates.noindex/PrecompiledHeaders/Runner-Bridging-Header-swift_1OW9P6QJWPL3W-clang_1QOPLZ3HJICL2.pch' for bridging header '/Users/sm-sayedi/Projects/web/flutter/test_app/ios/Runner/Runner-Bridging-Header.h'

Uncategorized (Xcode): Command PrecompileSwiftBridgingHeader emitted errors but did not return a nonzero exit code to indicate failure

Swift Compiler Error (Xcode): No such file or directory: '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'

Swift Compiler Error (Xcode): Stat cache file '/Users/sm-sayedi/Library/Developer/Xcode/DerivedData/SDKStatCaches.noindex/iphonesimulator18.2-22C146-07b28473f605e47e75261259d3ef3b5a.sdkstatcache' not found

Swift Compiler Error (Xcode): Clang importer creation failed

Uncategorized (Xcode): Command SwiftEmitModule failed with a nonzero exit code

Could not build the application for the simulator.
Error launching application on iPhone 16 Pro.

Exited (1).

• ios
• flutter
• xcode
• ios-simulator

• do you have pods installed on your device? – Munsif Ali Commented Mar 19 at 8:07
• Do you mean by running sudo gem install cocoapods? By the way, I have followed the instructions in docs.flutter.dev/get-started/install/macos/mobile-ios. – sm-sayedi Commented Mar 19 at 8:09
• try these commands cd ios rm -rf Pods rm -rf Podfile.lock pod install cd .. – Munsif Ali Commented Mar 19 at 8:12
• I ran those commands and when pod install is run, it says: [!] No `Podfile' found in the project directory. – sm-sayedi Commented Mar 19 at 8:55
• 1 Let us continue this discussion in chat. – Munsif Ali Commented Mar 19 at 9:35

1 Answer 1

That solution is straightforward and effective for resolving Xcode build issues after an update. However, here are a few improvements to make the answer clearer and more professional:

Improved Answer:

I faced this issue after updating Xcode and iOS 16. Here’s what worked for me:
1. Open your project in Xcode.
2. Click on File in the top menu bar.
3. Select Workspace Settings.
4. Change Derived Data from Default Location to Workspace-relative Location.
5. Click Done.
6. Run your app again.

This resolved the issue for me. If the problem persists, try running flutter clean and rebuilding the project.