title: Warning: vim-7.4.712_1 already installed, it's just not linked
body: <p>Disclaimer: Complete Noob</p>
  
  <p>I just started using OS X for the first time. Decided to start using vim. I installed vim with YouCompleteMe. However, when I realized I did not have the appropriate version to use the plug in, I believe I reinstalled on top of the existing installation which I read afterwards was bad. I then tried installing through brew by using the command </p>
  
  <pre><code>brew install vim --override-system-vi
  </code></pre>
  
  <p>Now I get the error </p>
  
  <pre><code> Warning: vim-7.4.712_1 already installed, it's just not linked
  </code></pre>
  
  <p>All I want to do is install vim 7.4 so I can install YouCompleteMe.</p>
  
  <p>When I run the vim command I get all this junk</p>
  
  <pre><code>Error detected while processing /Users/raulalan/.vimrc:
  line   50:
  E117: Unknown function: vundel#rc
  line   59:
  E492: Not an editor command: ^D # This means Ctrl+D
  YouCompleteMe unavailable: requires Vim 7.3.584+
  </code></pre>
  
  <p>Is this due to installing on top of the existing directory without using the -override-system-vi flag. Help is super appreciated since I feel completely lost using these new environments. </p>