Command /Applications/Xcode-beta.app/Contents/Developer/usr/bin/actool failed with exit code 255

Question

It happens in new Xcode7 beta:

CompileAssetCatalog /Users/admin/Library/Developer/Xcode/DerivedData/InstaAd-ddgdnbxlpxipirebpndfmgrxspel/Build/Products/Debug-iph         


        

Answer 1

I was experiencing this issue as well, and replaced the XC Assets with plain .JPG files. Solved it for me.

However, I just installed the GM seed release of Xcode 7 and built with the XC assets catalog, and am no longer experiencing the error. So it appears to have been fixed.