Rails not finding rake-10.5.0
问题 I am trying to install the rake gem in rails 4.2. Th gem seems to be install fine, but then Rails fails when it tries to run, saying that it cannot see rake-10.5.0 . I am developing in Rubymine and the error I am getting is below, as is my Gemfile. I have tried deleting Gemfile.lock as suggested by other posts, but to no avail. Console: ~/Development/RubymineProjects/Revenant.tech ls Gemfile Rakefile config lib test Gemfile.lock app config.ru log tmp README.rdoc bin db public vendor ~