You have already activated rake 0.9.0, but your Gemfile requires rake 0.8.7

Question

I\'m trying to run rails project, I get

Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.

If I

Answer 1

I had this problem (with another gem that was not rake) and I was able to fix it by

gem uninstall 
gem install 

bundle install
bundle update

Note that the keyword 'sudo' was not used (ie. sudo bundle install) as that may place your gem into directories where your rails app might not be searching in.