I have an existing Xcode project that I am trying to add MusicKit to, but for some reason I am unable to. I have logged into my developer account, and ticked off the MusicKit checkbox under the Services tab of my app in the Certificates, Identifiers & Profiles section. In Xcode I have Automatically manage signing set to true. But MusicKit does not show up as a Capability, neither in the list of capabilities in my app, nor when trying to add it with the +Capability button. I have done this successfully before with Game Center, so I really do not understand why this does not work with MusicKit.
Any ideas as to how this can be solved?