title: Problems with redmine installing step 5. rake generate_secret_token
body: <p>I'm trying to install Redmine on my fedora machine and I have been following the official wiki to install it, I have gotten up to step 5 when I am asked to run the</p>
  
  <p>*rake generate_secret_token*</p>
  
  <p>command, however when I do I get this error </p>
  
  <pre><code>rake aborted!
  cannot load such file -- mysql2/mysql2
  /home/usera/redmine-2.3/config/application.rb:7:in `&lt;top (required)&gt;'
  /home/usera/redmine-2.3/Rakefile:5:in `&lt;top (required)&gt;'
  (See full trace by running task with --trace)
  </code></pre>
  
  <p>with --trace </p>
  
  <pre><code>rake aborted!
  cannot load such file -- mysql2/mysql2
  /usr/local/share/gems/gems/mysql2-0.3.13/lib/mysql2.rb:8:in `require'
  /usr/local/share/gems/gems/mysql2-0.3.13/lib/mysql2.rb:8:in `&lt;top (required)&gt;'
  /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
  /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
  /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
  /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
  /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
  /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
  /usr/local/share/gems/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
  /home/usera/redmine-2.3/config/application.rb:7:in `&lt;top (required)&gt;'
  /usr/share/rubygems/rubygems/custom_require.rb:36:in `require'
  /usr/share/rubygems/rubygems/custom_require.rb:36:in `require'
  /home/usera/redmine-2.3/Rakefile:5:in `&lt;top (required)&gt;'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/rake_module.rb:25:in `load'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/rake_module.rb:25:in `load_rakefile'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/application.rb:637:in `raw_load_rakefile'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/application.rb:94:in `block in load_rakefile'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/application.rb:165:in `standard_exception_handling'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/application.rb:93:in `load_rakefile'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/application.rb:77:in `block in run'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/application.rb:165:in `standard_exception_handling'
  /usr/local/share/gems/gems/rake-10.1.0/lib/rake/application.rb:75:in `run'
  /usr/local/share/gems/gems/rake-10.1.0/bin/rake:33:in `&lt;top (required)&gt;'
  /bin/rake:23:in `load'
  /bin/rake:23:in `&lt;main&gt;'
  </code></pre>
  
  <p>I am running the command as root. This is the guide I used <a href="http://www.redmine.org/projects/redmine/wiki/RedmineInstall" rel="nofollow">http://www.redmine.org/projects/redmine/wiki/RedmineInstall</a></p>