title: YCM does not work with eclim
body: <p>I have eclim setup and working. I know this because</p>
  
  <pre><code>:PingEclim
  </code></pre>
  
  <p>shows</p>
  
  <pre><code>eclim   2.3.4
  eclipse 4.3.2
  Press ENTER or type command to continue
  </code></pre>
  
  <p>in appropriate colors and Ctrl-X, Ctrl-U show correct completions after a partial method name in insert mode.</p>
  
  <p>However, YouCompleteMe does not work. To install YouCompleteMe, I added the following lines.</p>
  
  <pre><code>set rtp+=~/.vim/bundle/vundle/
  call vundle#rc()
  Bundle 'Valloric/YouCompleteMe'
  let g:EclimCompletionMethod = 'omnifunc'
  </code></pre>
  
  <p>When I type the partial method name, I expect to see the same completions as when I typed Ctrl-X Ctrl-u above. Instead what I see is</p>
  
  <pre><code>-- User defined completion (^U^N^P) Pattern not found
  </code></pre>
  
  <p>The "Pattern not found" part is in red color.</p>
  
  <p>How do I verify YCM is installed correctly? What does the error message mean?</p>