title: Laravel mix vue-template-compiler must be installed as a peer dependency
body: <p>i got a fresh laravel installation, everything compile well but when I install vuex or vue router through npm, compiling wont work anymore, i got this error:</p>
  
  <blockquote>
    <p>Error: [vue-loader] vue-template-compiler must be installed as a peer
    dependency, or a compatible compiler implementation must be passed via
    options.</p>
  </blockquote>