"pbxcp failed with exit code 1"

When I build to the default location, I get an error: Command /Developer/Library/PrivateFrameworks/DevToolsCore.framework/Resources/pbxcp failed with exit code 1 . However, it still creates the .app fine and when I double click it launches.

When I build to the desktop, there are no errors.

Why do I get this “pbxcp” error?

Any help would be appreciated!

Model: MacBook Pro 2.53 GHz
AppleScript: 2.1.2
Browser: Firefox 4.0b6
Operating System: Mac OS X (10.6)