Your bundle is locked to mimemagic (0.3.5), but that version could not be found in any of the sources listed in your Gemfile. If you
haven't changed sources, that means the author of mimemagic (0.3.5) has removed it. You'll need to update your bundle to a version
other than mimemagic (0.3.5) that hasn't been removed in order to install.
looks like that version is no longer around.
I was trying to run the ruby oauth application and got this error:
From here: https://stackoverflow.com/questions/66919504/your-bundle-is-locked-to-mimemagic-0-3-5-but-that-version-could-not-be-found
and here https://rubygems.org/gems/mimemagic/versions
looks like that version is no longer around.