have googled this issue and had some search here on the forum, couldn't find the solution.
trying to activate WebProfilerBundle (added to AppKernel::registerBundle() ).
when trying to access the page (e.g. index site.loc/app_dev.php) got an error:
"Error: An exception has been thrown during the rendering of a template ("Unable to generate a URL for the named route "_profiler" as such route does not exist.") in "eticketBundle::layout_2col_right.html.twig" at line 28."
so i guess that routes from WebProfilerBundle (...src/Symfony/Bundle/WebProfilerBundle) are not merged with others.
have i missed anything ?
thanks in advance