Revision history [back]

This error message usually indicates that there is an issue with one or more of the scripts that are being executed during the build process. This could be due to a range of issues, such as a missing dependency, incorrectly configured build settings, or an error in one of the scripts themselves.

To troubleshoot this issue, you can try the following steps:

Check the build logs. Xcode should provide more detailed information about which script is failing and why. Look for any error messages or warnings that might provide clues as to what is causing the issue.
Check your project settings. Make sure that all of your build settings are configured correctly, and that you have all of the necessary dependencies installed.
Try cleaning your project. Sometimes there can be leftover files or cached data that are causing issues. Go to "Product" > "Clean Build Folder" to try and fix any issues related to cached data.
Try resetting Xcode. If none of the other steps work, try resetting Xcode to its default settings. You can do this by quitting Xcode, deleting the "DerivedData" folder (found at ~/Library/Developer/Xcode/DerivedData), and then restarting Xcode.

If none of these steps work, it may be worth reaching out to the Flutter community or filing a bug report with Apple.