title: npm install throwing error in node-sass
body: <pre><code>node-sass@2.1.1 install /home/user/Documents/project/node_modules/node-sass
  &gt; node scripts/install.js
  
  WARN invalid config loglevel="notice"
  Can not download file from https://raw.githubusercontent.com/sass/node-sass-binaries/v2.1.1/linux-x64-node-8.2/binding.node
  
  &gt; node-sass@2.1.1 postinstall /home/user/Documents/project/node_modules/node-sass
  &gt; node scripts/build.js
  
  module.js:487
      throw err;
      ^
  
  Error: Cannot find module '/home/user/Documents/project/node_modules/node-sass/node_modules/pangyp/bin/node-gyp'
      at Function.Module._resolveFilename (module.js:485:15)
      at Function.Module._load (module.js:437:25)
      at Function.Module.runMain (module.js:605:10)
      at startup (bootstrap_node.js:158:16)
      at bootstrap_node.js:575:3
  Build failed
  added 2186 packages in 42.166s
  </code></pre>
  
  <p>I tried so far:</p>
  
  <p><li>npm rebuild
  <li>npm rebuild node-sass
  <li>npm uninstall -g node-sass
  
  <li>rm -rf node_module</li></p>