title: Cannot find module 'node-sass-middleware'
body: <p>When trying to use gulp, I'm having ' Cannot find module 'node-sass-middleware' ' error.</p>
  
  <pre><code>module.js:340
  throw err;
        ^
  Error: Cannot find module 'node-sass-middleware'
      at Function.Module._resolveFilename (module.js:338:15)
      at Function.Module._load (module.js:280:25)
      at Module.require (module.js:364:17)
      at require (module.js:380:17)
      at Object.&lt;anonymous&gt; (/home/wallet/node_modules/gulp-sass/node_modules/node-sass/sass.js:180:22)
      at Module._compile (module.js:456:26)
      at Object.Module._extensions..js (module.js:474:10)
      at Module.load (module.js:356:32)
      at Function.Module._load (module.js:312:12)
      at Module.require (module.js:364:17)
  </code></pre>
  
  <p>node-sass-middleware is empty for some reason. 
  I've installed gulp like </p>
  
  <pre><code>sudo npm install -g gulp
  </code></pre>
  
  <p>node-sass-middleware folder has appeared, but its empty inside but a node_modules folder which is also empty.</p>
  
  <pre><code>/home/wallet/node_modules/gulp-sass/node_modules/node-sass/node_modules/node-sass-middleware/.js
  </code></pre>
  
  <p>Am I installing gulp wrong?</p>