moved library; now unreadable

I am experimenting with different cloud arrangements. I moved a library and all its associated files from Dropbox over to OneDrive (I realize that’s not 100% recommended, but I wanted to test the limitations.)

OneDrive wasn’t syncing, so I moved back to Dropbox. But when I went to open the library (with the “open library” command and selecting the library file), I got a message that it was unreadable.

All the files seem to be just fine. Do I have to build another library from scratch, using those files? I don’t have any tags worth saving.

It sounds like one or the other of them damaged the database file. You can just rebuild it, and this will preserve the tags.