title: How to resolve error where gem from git repository "is not checked out. Please run `bundle install`"
body: <p>I have been tearing my hair out for a week trying to get a project to run locally.</p>
  
  <p><code>bundle install</code> works fine but when I run <code>foreman start</code>, I get this error:</p>
  
  <p><strong>git://github.com/{repo_path}.git (at master) is not checked out. Please run `bundle install`</strong></p>
  
  <p>I've trawled through Stackoverflow and still can't get this to work.</p>
  
  <p>OS: Lion
  Rails: 3.1.3
  Ruby: 1.9.3-p0
  Bundler: 1.0.21</p>
  
  <p>Any ideas?</p>