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 [duplicate]
Few days ago, the mimemagic versions were yanked. More info can be found at: https://github.com/rails/rails/issues/41750 https://rubygems.org/gems/mimemagic/versions You can modify your Gemfile as below: gem ‘mimemagic’, github: ‘mimemagicrb/mimemagic’, ref: ’01f92d86d15d85cfd0f20dabd025dcbd36a8a60f’