The attribute 'name' is invalid - XCode Flutter app archiving

Question

I've been trying to archive my Flutter app on XCode for App Store Connect, and I keep running into the following error:

I've gone through info.plist and made sure all of my build settings do not contain illegal characters in any of the bundle or product names. For some reason XCode is injecting XC into some name field that I can't seem to locate to prevent from happening.

Has anyone encountered this before?

Answer 1

Had the same issue today, for me it was underscores (_) in the bundle identifier which caused the problem. Changing them to hyphens (-) fixed it for me.