title: 'Twig_Error_Syntax' with message 'Unknown "render" filter
body: <p>I'm running drupal 8, composer and npm to perform gulp tasks.</p>
  
  <p>When I run npm start.. my task manager: I get the following stack trace:</p>
  
  <pre><code>Fatal error: Uncaught exception 'Twig_Error_Syntax' with message 'Unknown "render" filter.' in /web/project/web/themes/emulsify/components/_patterns/04-templates/basic-page/_basic_page.twig:26
  Stack trace:
  #0 /web/project/web/themes/emulsify/pattern-lab/vendor/twig/twig/lib/Twig/ExpressionParser.php(481): Twig_ExpressionParser-&gt;getFilterNodeClass('render', 26)
  #1 /web/project/web/themes/project_theme/pattern-lab/vendor/twig/twig/lib/Twig/ExpressionParser.php(466): Twig_ExpressionParser-&gt;parseFilterExpressionRaw(Object(Twig_Node_Expression_Name))
  #2 /web/project/web/themes/project_theme/pattern-lab/vendor/twig/twig/lib/Twig/ExpressionParser.php(320): Twig_ExpressionParser-&gt;parseFilterExpression(Object(Twig_Node_Expression_Name))
  #3 /web/project/web/themes/project_theme/pattern-lab/vendor/twig/twig/lib/Twig/ExpressionParser.php(212): Twig_ExpressionParser-&gt;parsePostfixExpression(Object(Twig_Node_Expression_Name))
  #4 /web/project in /web/project/web/themes/project_theme/components/_patterns/04-templates/basic-page/_basic_page.twig on line 26
  </code></pre>
  
  <p>I've looked at installing twig-bridge / symfony twig via composer but I can't seem to get rid of the error message.</p>
  
  <p>Do I just ditch using the twig filter "render"? </p>
  
  <hr>
  
  <p>Update: 14/08/17</p>
  
  <p>I've also ran into the same problem when trying to use the drupal_block function provided via Drupal 8's twig_tweak module.</p>