Error while accessing admin section I am facing the following error while trying to access Admin section in Drupal 8 (WAMP Server). I tried to install the Update manager module and from then I am facing this error. I am unable to access any Admin section of the website. But, I am able to login and access the User account section (Ex: http/test.com/user/1).


  The website encountered an unexpected error. Please try again later.
  
  Symfony\Component\Routing\Exception\RouteNotFoundException: Route "update.report_update" does not exist. in Drupal\Core\Routing\RouteProvider-&gt;getRouteByName() (line 191 of core\lib\Drupal\Core\Routing\RouteProvider.php).


Any suggestion please?
Its problem with my custom module. Wherever I am installing that module, it is creating a mess. I am trying to sort out the issue with my module.

This is due to the menu routing problem in my custom module. Please see the below link: https://www.drupal.org/node/2635308