When I run the rake command (rake db:migrate) and run it, I get this
error message. (I’m currently running Rails 2.0.2)
Missing the Rails 2.0.2 gem. Please
gem install -v=2.0.2 rails,
update your RAILS_GEM_VERSION setting in config/environment.rb for the
Rails version you do have installed, or comment out RAILS_GEM_VERSION
to use the latest version installed.
What do I need to do, and how do I do it? I’m fairly new to command-
line commands, so please be detailed.