title: Gem dependency hell installing redmine with CRM plugins
body: <p>I was installing a clean Redmine 3.0 with CRM plugin on a fresh install of Ubuntu Server 14.04LTS. I succeeded with redmine and a minor plugin, but the CRM one has hit me with this:</p>
  
  <pre><code># bundle install --without development test RAILS_ENV=production
  Don't run Bundler as root. Bundler can ask for sudo if it is needed, and 
  installing your bundle as root will break this application for all non-root 
  users on this machine.
  
  Warning: this Gemfile contains multiple primary sources. Using `source` more
  than once without a block is a security risk, and may result in installing 
  unexpected gems. To resolve this warning, use a block to indicate which gems 
  should come from the secondary source. To upgrade this warning to an error, run 
  `bundle config disable_multisource true`.
  Fetching gem metadata from https://rubygems.org/.........
  Fetching version metadata from https://rubygems.org/..
  Resolving dependencies...
  Bundler could not find compatible versions for gem "i18n":
    In Gemfile:
      rails (= 4.2.0) ruby depends on
        actionpack (= 4.2.0) ruby depends on
          activesupport (= 4.2.0) ruby depends on
            i18n (~&gt; 0.7) ruby
  
      money (~&gt; 5.1.0) ruby depends on
        i18n (~&gt; 0.6.0) ruby
  </code></pre>
  
  <p>I installed i18n 0.6.0 and 0.7.0, didn't fix:</p>
  
  <pre><code># gem list --local | grep i18n
  i18n (0.7.0, 0.6.0)
  </code></pre>
  
  <p>I tried removing the Gemfile.lock and using bundler (<code>bundle update &amp;&amp; bundle install</code>) again, same result.</p>
  
  <p>I have no idea how to proceed with this issue. I know very little of ruby, gems and bundler and searching has failed me. Help, please.</p>