iTunes libraries will not open in Apple Music - It upgraded me from Mojave to Big Sur, skipping Catalina. And now, I cannot open any of my iTunes libraries!
All the libraries are GRAY after it upgraded me from Mojave – automatically skipping Catalina – to Big Sur.
And I tried right-clicking on an iTunes library ("iTunes Library.xml"), but again nada.
I cannot open ANY of my iTunes libraries! They are all gray. They are on an external HDD, formatted to Mac OS Journaled. (At some point, Apple started reformatting people's system drives to a new type.) On one iTunes library folder I did the "Repair security permissions for iTunes for Mac" thing.† But still did not work, and still grayed out.
I googled for an answer, but the only one I found that seemed related (that I tried) didn't work: The libraries are grayed out. This was all I found, so far, which I already knew (holding the Option key when selecting Apple Music, just as I had done with Apple iTunes to switch libraries):
"Switch libraries with the Apple Music app in macOS
If you have multiple iTunes libraries, learn how to switch between them in the Apple Music app in macOS Catalina or later.
How to switch iTunes libraries
Press and hold the Option key, then open the Apple Music app.
In the window that appears, click Choose Library.
Select the iTunes library that you want to switch to.
Click Choose.
Published Date: July 20, 2021"
I was able to get access to music some other way, but it lost all Playlists, Ratings, Plays, etc.
Help!
† From Repair security permissions for iTunes fo… - Apple Community I did the first paragraph: "Occasionally incorrect security permissions may prevent iTunes or Music from operating normally. To make sure that your profile has full read and write permissions to the iTunes folder and all its subfolders use Get Info on the iTunes folder in Finder. (In Catalina or later go to ~Music/Music instead.) Click the lock at the bottom right to make changes. Make sure that Locked isn't ticked and that your own account has Read & Write access, then use the gear icon at the bottom to Apply to enclosed items and confirm. Repeat with the media folder if it isn't a subfolder of the main library folder."
But the iTunes Library was still grayed when I clicked Option when opening Apple Music.