title: How to solve problems while installing ui in laravel?
body: <p>While installing laravel/ui I got this following error.</p>
  <pre><code>Using version ^2.0 for laravel/ui
  
    Problem 1
      - Conclusion: remove laravel/framework v6.18.0
      - Conclusion: don't install laravel/framework v6.18.0
      - laravel/ui 2.x-dev requires illuminate/support ^7.0 -&gt; satisfiable by laravel/framework[7.x-dev], illuminate/support[7.x-dev, v7.0.0, v7.0.1].
      - laravel/ui v2.0.0 requires illuminate/support ^7.0 -&gt; satisfiable by laravel/framework[7.x-dev], illuminate/support[7.x-dev, v7.0.0, v7.0.1].
      - Can only install one of: laravel/framework[7.x-dev, v6.18.0].
      - don't install illuminate/support 7.x-dev|don't install laravel/framework v6.18.0
      - don't install illuminate/support v7.0.0|don't install laravel/framework v6.18.0
      - don't install illuminate/support v7.0.1|don't install laravel/framework v6.18.0
      - Installation request for laravel/framework (locked at v6.18.0, required as ^6.2) -&gt; satisfiable by laravel/framework[v6.18.0].
      - Installation request for laravel/ui ^2.0 -&gt; satisfiable by laravel/ui[2.x-dev, v2.0.0].
  </code></pre>
  <p>My laravel version is 6.18 and here are some important contents of <code>composer.json</code></p>
  <pre><code>&quot;require&quot;: {
      &quot;php&quot;: &quot;^7.2&quot;,
      &quot;fideloper/proxy&quot;: &quot;^4.0&quot;,
      &quot;laravel/framework&quot;: &quot;^6.2&quot;,
      &quot;laravel/tinker&quot;: &quot;^2.0&quot;
  },
  &quot;require-dev&quot;: {
      &quot;facade/ignition&quot;: &quot;^1.4&quot;,
      &quot;fzaninotto/faker&quot;: &quot;^1.9.1&quot;,
      &quot;mockery/mockery&quot;: &quot;^1.0&quot;,
      &quot;nunomaduro/collision&quot;: &quot;^3.0&quot;,
      &quot;phpunit/phpunit&quot;: &quot;^8.0&quot;
  }
  </code></pre>
  <p>How to solve this problem?</p>