title: Can't resolve a local npm module made by npm pack
body: <p>I created a local module using <code>npm pack</code>, which created a package: "org-header-0.0.3.tgz"</p>
  
  <p>In a React project, I added <code>org-header</code> to its <code>package.json</code>:</p>
  
  <pre><code>"dependencies": {
    "org-header": "file:[path-to-org-header]/org-header-0.0.3.tgz",
   ...
  }
  </code></pre>
  
  <p>It installs fine. However, when I try to use it:</p>
  
  <pre><code>import Header from 'org-header';
  
  ...
  </code></pre>
  
  <p>However when I do <code>npm run start</code>:</p>
  
  <pre><code>Failed to compile.
  
  ./src/components/Layout.js
  Module not found: Can't resolve 'org-header' in '/Users/imyjimmy/***/src/components'
  </code></pre>
  
  <p>Could it be because:</p>
  
  <ol>
  <li>I did not structure the org-header project correctly</li>
  <li>Webpack is doing something weird</li>
  <li>Both?</li>
  </ol>