title: Module <rootDir>/node_modules/vue-jest in the transform option was not found
body: <p>I got an error and I need your help. Thank for watching this question.</p>
  
  <p>My situation: I am configuring Drone CI tool for my project and I get this when I run <strong>unit test on drone.yml</strong>.</p>
  
  <pre><code>Validation Error:
  
    Module &lt;rootDir&gt;/node_modules/vue-jest in the transform option was not found.
  
    Configuration Documentation:
    https://jestjs.io/docs/configuration.html
  </code></pre>
  
  <p>Here is my <code>jest.conf.js</code></p>
  
  <pre><code>transform: {
      "^.+\\.js$": "babel-jest",
      ".*\\.vue$": "&lt;rootDir&gt;/node_modules/vue-jest"
    },
  </code></pre>
  
  <p>What I have tried:</p>
  
  <ol>
  <li>Remove <code>&lt;rootDir&gt;/node_modules/</code>. But I got an another error <code>Module vue-jest in the transform option was not found.</code>. So I think it is not the right solution</li>
  </ol>