rake probleme

 

You have already activated rake 0.9.2, but your Gemfile requires rake
0.8.7. Consider using bundle exec.

 

4 solutions:

1. Removing later rake with gem uninstall rake -v=0.9.0
then make sure you change your Gemfile:
gem rake, '0.8.7' (use gem list to see if you have it)
The reason is: also if your system updates your rake (probably because
of installing another gem which requires that) your app will work.

2. Use $ bundle install vendor/gems
it will bundle all your gems used into your app. It also has some
caching benefits but maybe your app will be bigger.
http://stackoverflow.com/questions/3411522/how-do-...

3. Use the code snippet what Harry said (into your Rakefile):

module ::YourApplicationName
  class Application
    include Rake::DSL
  end
end


4. Create app-specific gem environment with RVM Gemsets
http://beginrescueend.com/gemsets/basics/

Using $ bundle exec rake might avoid the problem but it definitely
doesn't solve it and next time will be the exact same problem.