The command line tool to build Xcode projects, xcodebuild, has a new build action available in Xcode 4: archive.
From man xcodebuild:
Is this working from the GUI ? Project -> Build for Archive Then you can find the archive back in Organizer (archive Tab) It is working for me in the GUI
For information I'm 99% sure that xcodebuild archive was working in a previous Xcode 4 version, maybe a Beta...
And this is really frustrating since -verbose and syslogs doesn't bring much details.
So I would call that... a Bug!
If automating your build is what you are looking for, there is a way to generate IPA archive from command line using xcrun PackageApplication
With xcrun to package and xcodebuild to build, you can almost achieve what xcodebuild archive is supposed to do. I would prefer to use xcodebuild since we can expect this to generate a .xcarchive (.app + .dSYM), more interesting than an IPA.
Not so off-topic, but if anyone knows how to get more logs from xcodebuild and Xcode, I'm really interested!
EDIT: After looking in Apple Forums, I confirm this is an Xcode BUG introduced with GM2... I guess Apple Xcode engineers are working on Xcode 4.1 that I think final version will be released with OSX Lion... In june maybe? With a fix? :(
This seems to work for me:
xcodebuild -project TestApp.xcodeproj -scheme TestApp -configuration "Ad Hoc" archive