title: Can't find module in nodejs
body: <p>I am facing this issue. when i am trying to run <strong>app.js</strong>   </p>
  
  <pre><code>Error: Cannot find module './protocol/json'
          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; (C:\xampp\htdocs\project\dev4\nodejs\node_modules\a
      ws-sdk\lib\core.js:31:11)
          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>Any idea.?</p>
  
  <p>Thanks</p>