Controller of show / violation action not callable

[EulalieM]

There is a syntax error in the admin.yaml file that gives me this error:

The controller for URI "/admin/feeds/1" is not callable: Controller "setono_sylius_feed.controller.feed:showAction" does neither exist as service nor as class.

corrected as follows: _controller: setono_sylius_feed.controller.feed:showAction -> error _controller: setono_sylius_feed.controller.feed::showAction -> ok

is it just me? ... !

Thanks