I accidentally ran:
sudo gem install sqlite3
instead of:
sudo gem install sqlite3-ruby
So now when I run gem list I get:
gem list
*** LOCAL GEMS ***
sqlite3 (0.0.7)
sqlite3-ruby (1.2.5)
What is the difference between the two? And do I need both?
sqlite3-ruby is the gem you probably need. It is the only sqlite gem I have installed.
sqlite3 (0.0.7) is described here: as SQLite3 FFI bindings for Ruby 1.9