There seems to be a new issue with Xcode 4.6 (the release version which just came out on the 20th of this month), here is what it is spitting out:
Build operation failed without specifying any errors. Individual build tasks may have failed for unknown reasons. Some of these (up to 12) may be listed below.
After running `xcodebuild’ from the command line, the only thing I see is RezMerger trying to create the ProductName.rsrc file without any real useful information…
I am using OSX 10.8.2 12C60 with the latest Xcode 4.6 from developer.apple.com… Additionally, just to ensure that this isn’t local to my system, I had no problems using Xcode 4.4 with the same version of OSX earlier this morning.