CompileAssetCatalog failed with a nonzero exit code

Hi,

im just new to XCode, the course im following the first 2 demo apps i build worked perfect. at some point they said to update all my software, so i updated to Xcode 11 and new OS Catalina. Every time i compile my project i get this error. "CompileAssetCatalog failed with a nonzero exit code". i have been looking for over 4 hours to fix it so far no luck.

CompileAssetCatalog failed with a nonzero exit code
 
 
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