Removing all installed Gems and starting over

Question

I recently started learning Ruby and Ruby on Rails, and have watched a plethora of getting started materials. I have been finding lately that I keep getting errors where gems w

Answer 1

gem uninstall -aIx

Uninstalls all gems without prompt.

Options

-a, --[no-]all                   Uninstall all matching versions
-I, --[no-]ignore-dependencies   Ignore dependency requirements while
                                 uninstalling
-x, --[no-]executables           Uninstall applicable executables without
                                 confirmation