Symfony 2.1 – Uncaught PHP Exception Twig_Error_Runtime-Collection of common programming errors
This Exception is thrown in the dev environment if the profiler is enabled but it’s routing configuration is missing.
Unable to generate a URL for the named route "_wdt" as such route does not exist.
Please check that your app/config/routing_dev.yml contains the following lines:
# app/config/routing_dev.yml
_wdt:
resource: "@WebProfilerBundle/Resources/config/routing/wdt.xml"
prefix: /_wdt
_profiler:
resource: "@WebProfilerBundle/Resources/config/routing/profiler.xml"
prefix: /_profiler
This will fix your issue.