Code signing doesn’t work after upgrading to Xcode 13.0 stack

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We have the same issue. I’ve also checked the answer from this thread Code signing doesn't work after upgrading to Xcode 13.0 stack from Xcode 12.5 - #2 by Roland-Bak

This mostly happens when a cocoapod/dependency is invalid and or the project still uses legacy build system ( which got removed from Xcode 13 ).

Also, Xcode 13 no longer supports ( iPhone Developer: * ) certificates, only Apple Development: * , and they seem to be in used here. Our Steps still may use iPhone Developer if found, so the solution is to only include Apple Development cert in the build.

We don’t use legacy build system nor have iphone developer certificates.