Stryboard files causing Xcode (16.1) crash

It is highly frustrating when Xcode experiences crashes.

Here are a few solutions you can try to resolve the issue with opening storyboard files in Interface Builder after the Xcode 16.1 update. However, if Xcode is the one crashing when trying to open the storyboard, it would be very interesting to see the crash file itself if you could post it.

1. Clean Build Folder:

Sometimes, corrupted build files can cause issues. Try cleaning the build folder:

• Go to Product > Clean Build Folder (or press Shift + Command + K).
• Restart Xcode and try opening the storyboard again.

2. Reset Interface Builder Caches:

Interface Builder caches can sometimes get corrupted. Resetting them might help:

• Close Xcode.
• In the Finder, go to ~/Library/Developer/Xcode/DerivedData.
• Delete the entire DerivedData folder.
• Restart Xcode.

3. Disable Source Control Integration:

Source control integration can sometimes cause conflicts. Try disabling it temporarily:

• Go to Xcode > Preferences > Source Control.
• Uncheck the Enable source control box.
• Restart Xcode and try opening the storyboard again.

4. Create a New Storyboard and Copy Elements:

As a workaround, you can create a new storyboard, copy all the elements from the problematic storyboard, and paste them into the new one.

5. Check for Compatibility Issues:

Ensure that all your assets and components used in the storyboard are compatible with Xcode 16.1 and iOS 18.

6. Update macOS:

Make sure your macOS is up to date. Sometimes, system updates can resolve compatibility issues.

7. Reset Xcode Preferences:

Resetting Xcode preferences can help if there are any corrupted preferences causing the problem:

• Close Xcode.
• In the Finder, go to ~/Library/Preferences/.
• Delete the com.apple.Xcode.plist file.
• Restart Xcode.

8. Reinstall Xcode: If none of the above solutions work, you might want to try reinstalling Xcode:

• Uninstall Xcode from your Applications folder.
• Download Xcode from the Mac App Store or the Apple Developer website.
• Install Xcode again.

Before reinstalling, make sure to back up any important project files.

Additionally, I recommend selecting option 4. However, if you have the previous version of Xcode that successfully worked with those storyboards, you can retrieve the assets, with the previous version of Xcode and then create new storyboards using Xcode 16.1.

Please let me know if any of these solutions work for you!

Albert Pascual 
 Worldwide Developer Relations.

I followed all the steps, completely reset Xcode configurations, and tried multiple versions of Xcode, including betas, on different macOS versions. Currently, on Sequoia 15.2 beta with Xcode 16.1, Xcode no longer crashes, but Interface Builder displays incorrectly with a bug. All elements in Interface Builder are blue with warning "An internal error occurred. Editing functionality may be limited." I tried with a colleague’s MacBook with the same configurations as mine and everything is OK for him

I managed to stop Xcode from crashing, but the storyboard displays with a bug (everything is blue, and I can’t see the storyboard elements). It’s better than nothing; at least I can still make changes.

Until a proper fix is available, if it can help someone, here are the steps I followed using the terminal:

defaults delete com.apple.dt.Xcode

rm -rf ~/Library/Application\ Support/Xcode

rm -rf ~/Library/Caches/com.apple.dt.Xcode

rm -rf ~/Library/Preferences/com.apple.dt.Xcode.plist

rm -rf ~/Library/Developer/Xcode/DerivedData

rm -rf ~/Library/Developer/Xcode

Alternatively, repeat the same steps and then uninstall Xcode and reinstall it.

This is very interesting. Sorry you are going through this issue.

Could you kindly provide a link to a location where you have shared the comprehensive build report containing the aforementioned error messages? To collect the full build report in Xcode, follow these steps:

1. Navigate to the View menu and select Navigators.
2. Choose the Reports navigator option.
3. Select the report associated with your app’s build from the navigator.
4. Utilize the filter bar at the top of the build report to select the filter buttons for “All” and “All Messages.”
5. Click the “Export” button in the filter bar to save the detailed build report.

Albert Pascual
  Worldwide Developer Relations.