missing backoffice action definition

Hi all,

I have created a new action for backoffice and for some reason, it gives me the following warning when I open the page:

WARN 13:29:11 [hybrisHTTP37] [] [] [] [] [Action] could not find action definition for code [code.of.the.action.i.created]

Is there a way to find out where hybris has tried to retrieve the action definition from? I created such definition.xml but as I read from the warning message, it does not seem to be found in the location where I have stored it.

I suspect something might be wrong with my directory structure, but the error gives me no hint, and I cannot find the proper location where I could debug this.