title: Npm install cannot find module 'semver'
body: <p>I can't use <code>npm install</code> using the command prompt in NodeJS. I'm getting these errors when running <code>npm install</code>:</p>
  
  <pre><code>module.js:339
      throw err;
      ^
  Error: Cannot find module 'semver'
      at Function.Module._resolveFilename (module.js:337:15)
      at Function.Module._load (module.js:287:25)
      at Module.require (module.js:366:17)
      at require (module.js:385:17)
      at Object.&lt;anonymous&gt; (C:\Users\admin\AppData\Roaming\npm\node_modules\npm\l
  ib\config\defaults.js:6:14)
      at Module._compile (module.js:435:26)
      at Object.Module._extensions..js (module.js:442:10)
      at Module.load (module.js:356:32)
      at Function.Module._load (module.js:311:12)
      at Module.require (module.js:366:17)
  </code></pre>