title: Problems with starting devtools in electron - vue app
body: <p>Please, help me with electron-vue app issue. When installing npm I had 2 vulnarablities with high priority. Typing <code>npm run dev</code> command I have this:</p>
  <pre><code>`Unable to install vue-devtools: 
   Error: Exited with code 9
    at ChildProcess.eval (webpack:///./node_modules/cross-unzip/index.js?:38:21)
    at ChildProcess.emit (events.js:315:20)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:277:12`
  </code></pre>
  <p>I tried to install vue-devtools globally and in project directory.
  I use Ubuntu.</p>