title: How to see the dependency tree just from Gemfile?
body: <p>I am getting the following error when doing <code>bundle install</code></p>
  
  <pre><code>Make sure that `gem install couchbase -v '1.3.3'` succeeds before bundling.
  </code></pre>
  
  <p>Now, i have not included this gem in the <code>Gemfile</code>, so it's coming from some dependency. How can i figure out which gem is dependent on this couchbase gem?</p>
  
  <p>Since <code>bundle install</code> is failing and I don't have <code>Gemfile.lock</code> to figure out this dependency.</p>