mainmenu.nib error

I am currently trying to back up my computer to an external hard drive via Time Machine. When I go into systems preferences to access the program I come across the following error message " 'MainMenu.nib' is an online-only file. To open it, first move it into your Dropbox folder." I have used the search function to look for mailmenu.nib and nothing comes up on my computer. I would love some input on how I can successfully navigate this. Please share your thoughts.

MacBook Pro 13″, macOS 10.14

Posted on Dec 25, 2020 2:16 PM

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mainmenu.nib error

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