title: Magento 2 invalid template exception just after installation
body: <p>I have installed the Magento 2.0 platform on my localhost today. After completing all the setup and installation, when I tried to open the admin panel, it was showing a brown blank screen. When I switched to the developer mode, it is showing an invalid template error for require_js.phtml. The complete error is :</p>
  
  <pre><code>1 exception(s):
  Exception #0 (Magento\Framework\Exception\ValidatorException): Invalid template file: 'C:/xampp/htdocs/magento_demo/vendor/magento/module-backend/view/adminhtml/templates/page/js/require_js.phtml' in module: 'Magento_Backend' block's name: 'require.js'
  
  Exception #0 (Magento\Framework\Exception\ValidatorException): Invalid template file: 'C:/xampp/htdocs/magento_demo/vendor/magento/module-backend/view/adminhtml/templates/page/js/require_js.phtml' in module: 'Magento_Backend' block's name: 'require.js'
  #0 C:\xampp\htdocs\magento_demo\vendor\magento\framework\View\Element\Template.php(301): Magento\Framework\View\Element\Template-&gt;fetchView('C:/xampp/htdocs...')
  #1 C:\xampp\htdocs\magento_demo\vendor\magento\framework\View\Element\AbstractBlock.php(668): Magento\Framework\View\Element\Template-&gt;_toHtml()
  #2 C:\xampp\htdocs\magento_demo\vendor\magento\framework\View\Result\Page.php(249): Magento\Framework\View\Element\AbstractBlock-&gt;toHtml()
  #3 C:\xampp\htdocs\magento_demo\vendor\magento\framework\View\Result\Layout.php(171): Magento\Framework\View\Result\Page-&gt;render(Object(Magento\Framework\App\Response\Http\Interceptor))
  #4 C:\xampp\htdocs\magento_demo\generated\code\Magento\Backend\Model\View\Result\Page\Interceptor.php(193): Magento\Framework\View\Result\Layout-&gt;renderResult(Object(Magento\Framework\App\Response\Http\Interceptor))
  #5 C:\xampp\htdocs\magento_demo\vendor\magento\framework\App\Http.php(139): Magento\Backend\Model\View\Result\Page\Interceptor-&gt;renderResult(Object(Magento\Framework\App\Response\Http\Interceptor))
  #6 C:\xampp\htdocs\magento_demo\generated\code\Magento\Framework\App\Http\Interceptor.php(24): Magento\Framework\App\Http-&gt;launch()
  #7 C:\xampp\htdocs\magento_demo\vendor\magento\framework\App\Bootstrap.php(258): Magento\Framework\App\Http\Interceptor-&gt;launch()
  #8 C:\xampp\htdocs\magento_demo\index.php(39): Magento\Framework\App\Bootstrap-&gt;run(Object(Magento\Framework\App\Http\Interceptor))
  #9 {main}
  </code></pre>
  
  <p>I have never used Magento before and have no idea what the issue is or how to solve it. Can anyone tell me what to do to solve the issue?</p>