[MlMt] Migrating to Big Sur

[davecc0000]

MM now launches and doesn’t quit immediately. 

When I am asked for accounts passwords, immediately after entering one I get an alert:

“MailMate failed to save a file to disk. (/Users/macmini//Library/Application Support/MailMate/Messages/IMAP/[myemail address%40gmail.com at imap.gmail.con/State.plist_backup). Error: no such file or directory.”

I copied the files (see below) from my previous daily-functioning MM install on my Sierra boot disk to the new Big Sur drive (the entire MM folder, not by opening the folder and selecting all files and dragging those). 

Any idea why I’m getting this error?

Thanks,
Dave
macOS 11.3.1 Big Sur
MailMate 1.14

- - - 

> To migrate MailMate from Sierra to Big Sur, I moved these folders to identical locations on the new hard boot drive by dragging and dropping in Finder: 
> 
> ~/Library/Application Support/MailMate (folder)
> 
> ~/Library/Preferences/com.freron.MailMate.plist 
> 
> All copied. I then downloaded the latest daily MM beta and copied it to the Applications folder.
> 
> After booting into Big Sur and launching MailMate, MM quit immediately and Terminal opened and spit out some errors errors. (Terminal purges previous output on Quit so those are gone for now. I’ll post what I see when I next boot BS and run MM.)
> 
> Is my process correct?
> 
> Thanks,
> Dave