When I tried to rake the db.migrate, I got this:
$ rake db.migrate
Gem::LoadError: You have already activated rake 12.3.1, but your Gemfi
le requires rake 10.4.2. Prepending
bundle execto your command may
block in setup’
bundle exec rake db.migrate and got lots of errors also. I can’t continue with the lesson because the database is not set up and seeded. Please help.