tab on new plugin on fengoffice 2.1 doesn't show up

[kurniswan]

I make the helloworld plugin based on plugin documentation.
After I installed and activated the plugin, the tab of the plugin doesn't show up in dashboard. I've checked the check box on Administration--Tabs menu.

How can I make the tab to show up on the dashboard?

thanks

[WiZaxx]

Same here.

FO people wake up please.