logic hook doesn't get fired ...

Hi everybody,
I’m developing several custom modules for SuiteCRM to accomplish some demands I need for my own use.

I’m using ModuleBuilder to start from a ‘templated’ module.

As far as I understood searching the net, I have created a file named <logic_hooks.php> under main module dir at <custom/modulebuilder/packages/package_name/modules/module_name> with hook definitions --as described in developers guide–, and there is a file created under same path and with the class containing trigger actions.

Once deployed, the files appear under <modules/module_name> path, but hooks are never fired …

I have reviewed the code syntax and looks ok, with no syntax errors.

Where could be the fail?

Any help will be welcomed. Thanks in advance