title: How to fix "yo: command not found" after installing Yeoman
body: <p>Following these instructions, I tried to install yeoman using npm twice: 
  <a href="http://yeoman.io/learning/index.html" rel="noreferrer">http://yeoman.io/learning/index.html</a></p>
  
  <p>After the first failure, I uninstalled node using these instructions: 
  <a href="https://stackoverflow.com/questions/11177954/how-do-i-completely-uninstall-node-js-and-reinstall-from-beginning-mac-os-x">How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)</a> Then, I installed nvm and node/npm (via nvm) with one error: </p>
  
  <pre><code>[Yeoman Doctor] Uh oh, I found potential errors on your machine
  ---------------
  
  [Error] NPM root value is not in your NODE_PATH
    [info]
      NODE_PATH = /Users/joanna/.nvm/v0.10.22/lib/node_modules:.
      NPM root  = /Users/joanna/.node/lib/node_modules
  
    [Fix] Append the NPM root value to your NODE_PATH variable
      Add this line to your .bashrc
        export NODE_PATH=$NODE_PATH:/Users/joanna/.node/lib/node_modules
      Or run this command
        echo "export NODE_PATH=$NODE_PATH:/Users/joanna/.node/lib/node_modules" &gt;&gt; ~/.bashrc &amp;&amp; source ~/.bashrc
  </code></pre>
  
  <p>I pasted that command in, and then I ran <code>npm install -g yo</code> again. </p>
  
  <p>After following the instructions from the yeoman site again, it still can't find yeoman. I receive this error: 
  -bash: yo: command not found</p>
  
  <p>What is wrong? The Yeoman Doctor says: "Everything looks alright!"</p>