After upgrading to the latest versions of Visual Studio for Mac, Xamarin, and Xcode, I am unable to create a signed IPA archive. Everything runs on the simulator, everything builds fine in my release configuration. I can even create the archive just fine. But after I click "Sign and Distribute", regardless of whether I try to publish to the App Store or simply save the IPA to disk, I get the extremely generic "Failed to create IPA archive" message with no other detail about what failed.
As always with these types of problems, this worked the last time I tried to publish (2 months ago). Even trying to use "Sign and Distribute" on an archive I previously published successfully to the App Store fails with the same message. Are there any logs for this where I can see exactly what is failing? The Archive output window at the bottom of the screen doesn't show activity for this stage of the process.
UPDATE:
After finding the logs, was able to see the following error that shows that for some reason after upgrading the apps, permissions were somehow lost for creating the zip archive:
zip -r -y "/Applications/Xcode.app/MyApp.ipa" Payload
zip I/O error: Permission denied
zip error: Could not create output file (/Applications/Xcode.app/MyApp.ipa)
zip exited with code 15
ERROR:Failed to create IPA archive.
Finshed
So now the question becomes why, and what steps need to be taken to fix this the proper way (i.e., not just brute-forcing broad permissions)?