Suddenly I got the same problem:
Signing Identity: "-"
I rolled back my source code and it was fixed.
I think It was not a signing problem.
Probably my application was broken.
nekomimimi
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I saw the same message, but I don't know it is the same problem.
I removed "import AVFoundation" from my app, and other linking errors occurred.
I fixed these other linking errors, and the error of "framework 'CoreAudioTypes' not found" was gone.
It was not the 'CoreAudioTypes' framework problem.
I think this error message is misleading.