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

Sometimes you should uncheck de "alpha" option to export your png images to Xcode. That solve my problem.

Open "Preview" app - File - Export - Uncheck "alpha" option, then replace your old images in Xcode project.

Answer 2

Simple restart of Xcode fixed the error for me.

Answer 3

Had this actool error building a simple Sticker Pack in Xcode 8 Beta 6.

Seems to be a known error with animated stickers that should be fixed soon.

Answer 4

That happened because of JPG images in assets catalog, so I imported jpg images directly in the project, and now it works

Answer 5

This error happened with me because the image name contained some unsupported characters (it was saved by Xcode as c71a25e%2FÍcone-XPTO Imagem - 120x120.png, even when placed in .xcassets).

Changing the image name solved this error for me.

Answer 6

For all beta versions of Xcode you should go to Preferences->Locations and make sure that the command line tools point to the right version & that the Derived data and Archives point in a different folder that stable Xcode is