title: how to remove laravel with composer on linux mint 18.3(ubuntu 16.04)
body: <p>I install Laravel with the default composer</p>
  <pre><code>sudo composer create-project laravel/laravel laravel 5.6
  </code></pre>
  <p>then I found a lot of error cause the compose is version 1.0x so old</p>
  <p>then I remove the composer and update the composer to version 1.7.2</p>
  <p>the question is how can I remove the bad laravel?</p>
  <p>Can I just del the laravel directory?</p>
  <p>I try</p>
  <pre><code>    sudo apt-get purge  laravel
  sudo apt-get purge  laravel/laravle
  sudo apt-get purge  laravel/laravel laravel 5.6
  </code></pre>
  <p>it shows cannot find the laravel</p>
  <p>my var/www/html/laravel composer.json is below</p>
  <pre><code>{
      &quot;name&quot;: &quot;laravel/laravel&quot;,
      &quot;description&quot;: &quot;The Laravel Framework.&quot;,
      &quot;keywords&quot;: [&quot;framework&quot;, &quot;laravel&quot;],
      &quot;license&quot;: &quot;MIT&quot;,
      &quot;type&quot;: &quot;project&quot;,
      &quot;require&quot;: {
          &quot;php&quot;: &quot;&gt;=7.1.3&quot;,
          &quot;fideloper/proxy&quot;: &quot;~4.0&quot;,
          &quot;laravel/framework&quot;: &quot;5.6.*&quot;,
          &quot;laravel/tinker&quot;: &quot;~1.0&quot;
      },
      &quot;require-dev&quot;: {
          &quot;filp/whoops&quot;: &quot;~2.0&quot;,
          &quot;nunomaduro/collision&quot;: &quot;~1.1&quot;,
          &quot;fzaninotto/faker&quot;: &quot;~1.4&quot;,
          &quot;mockery/mockery&quot;: &quot;~1.0&quot;,
          &quot;phpunit/phpunit&quot;: &quot;~7.0&quot;,
          &quot;symfony/thanks&quot;: &quot;^1.0&quot;
      },
  </code></pre>