xcodebuild fails on the 'write auxiliary files' step

Question

I am doing a clean then archive:

xcodebuild -workspace MyApp.xcworkspace \
           -scheme MyScheme \
           -archivePath /Library/......./outputfolder/MyApp.xcarchive \
           clean archive

I get this error about 50% of the time.

The following build commands failed:
    Write auxiliary files

Its reported twice in the apple developer forums (but not yet on StackOverflow as far as I am aware).

• https://devforums.apple.com/message/938564#938564
• https://devforums.apple.com/message/953949#953949

Has anyone found the cause or a workaround?

Answer 1

This issue was fixed with the release of XCode 5.1.1 The release notes had 2 vague mentions of 2 bug fixes on the 'Build System' which I guess fixes the issue.

The updates should happen automatically. If not go to the app store and install both the command line tools update and the latest Xcode.