Since I installed XCode 5.1 today I get a CopyPNGFile Error for every image that is located in a folder where I did not create a folder reference.
So when I add a folder with images and create a folder reference for it and dont select the option "Create groups for any added folders" when importing then I dont get an error. And when I dont create a reference I get an error.
I used Xcode 5.1 until Beta 5 and never encountered problems before in the beta period.
In the build phases everything looks alright. No red marks.
Does anybody else have this problem too and maybe know why?