title: export 'default' (imported as 'Three') was not found in 'three'
body: <p>Overview
  In main.js, add</p>
  
  <pre><code>import Three from 'three'
  </code></pre>
  
  <p><code>Vue.use(Three)</code></p>
  
  <p>Start dev server with npm run dev.
  Expected behavior
  The Vue project should load without errors.
  Actual behavior
  The dev server gives this warning:</p>
  
  <pre><code>warning  in ./src/main.js
      7:8-14 "export 'default' (imported as 'Three') was not found in 'three'
  </code></pre>
  
  <p>And the browser's js console displays the error:</p>
  
  <pre><code>Uncaught TypeError: Cannot read property 'installed' of undefined
  at Function.Vue.use (eval at &lt;anonymous&gt; (app.js:723), &lt;anonymous&gt;:3443:15)
  at eval (eval at &lt;anonymous&gt; (app.js:778), &lt;anonymous&gt;:14:45)
  at Object.&lt;anonymous&gt; (app.js:778)
  at __webpack_require__ (app.js:660)
  at fn (app.js:84)
  at Object.&lt;anonymous&gt; (app.js:964)
  at __webpack_require__ (app.js:660)
  at app.js:709
  at app.js:712
  </code></pre>