I have the following error:
Command /usr/bin/codesign failed with exit code 1
Here is what I already did for trying to fix this:
The solution that worked for me is related to (what I think is) a change of path behavior after upgrading to Xcode 4.2:
You can no longer manually enter "armv6 armv7" but must enter $(VALID_ARCHS) instead: both for the Architectures and Valid Architectures fields under the Architectures section in your project's Build Settings pane. Xcode will automatically replace the statement with 'armv6 armv7'.
This string looks exactly the same as if you would have typed it in manually but nevertheless point to the actual correct paths that will be generated along with your build, ...or at least this is my take on it :P
Unrelated, we used to have "armv6 armv7" as well under Other Signing Flags and now took that out and it works fine. This must be just an extra.
Thanks and happy hacking. Gon