Xcode Image Asset Icon warning

I have renamed the Image.xcassets on my Project, now i got this warning. How can i correct this warning. I have renewed the Build Cheme, searched in the Build Configuration.


After remaining

/XCode_8/Mac App/ImageToAsset/ImageToAsset/main.m warning: Missing file: /XCode_8/Mac App/ImageToAsset/ImageToAsset/main.m is missing from working copy


Deleting the old asset and add a new has not solved the Problem.