xcode archive build fails with error Copy .strings file Error : Failed to remove

Ok, i figured it out:

I don't exactly know why Xcode wanted to delete a file that wasn't existent at that location in the first place, but it think it had to do with the project file which was broken for no apparent reason.

The way i fixed it was to just delete all the Localizable.strings files from the project ( i had 6 for different languages each in its own .lproj directory ) and then add them again one by one. –

This happened to me when I had duplicate references to a folder added to the project. Deleting the duplicate references fixed it.