Having problems with JToolBarHelper::save // ::cancel

[isalcedo]

Hello, i'm building a component and in the backend im having this problem.

I'm in the part "Developing a MVC Component/Adding backend actions"; at this moment the buttons "edit", "new" and "delete" from the toolbar works well, but when i want to edit a entry "Save & Close" and "Close" are getting a 404 error, "Save & Close" actually writtes the DataBase, there is not problem with it, but in redirection the buttons fail : View not found [name, type, prefix]: diconos, html, diconoView

I have not a diconos view, the change was "helloworld -> dicono" "helloworlds -> diconov" "com_helloword -> com_dicono" there is maybe a clue some "s" from helloworlds that i miss but i can't find where, I checked more than 5 times. Can someone of you guys, guide me to the right place?

Sorry for my english.

[isalcedo]

I solve this changing all my diconov to diconos, now the question is, that "s" is mandatory?