actool failed with exit code 255

Developer Tools & Services Xcode
MinMax OP
Created Aug ’15
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I have downloaded Xcode 7 beta 4 and opened my Swift iOS 8.4 project in Xcode 7, and have used the "Convert to latest Swift syntax" tool to convert the project to Swift 2.0. But, when I run the app, an error occurs that says: "/Applications/Xcode-beta.app/Contents/Developer/usr/bin/actool failed with exit code 255".


I tried to clean the project, and wipe the Derived Data folder, and uninstalling Xcode 6.4 and running the app, but the problem persists.


Why is this error occurring? Thanks!

Replies  1
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dzhukov OP
Aug ’15

I had exactly the same issue. My problem was is that I've added few images to Asset Catalog and added slicing attributes to them (on Xcode 7 beta), but somehow on Xcode 6 these changes (slices) started to produce a crash. So the fix is to remake slicing attributes on Xcode 6.
Hope this helps.

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actool failed with exit code 255
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