I use Seaside 3.1, Pharo 3.0,  on Ubuntu 14.04.

I need to use fullcalendar on JQWidgetBox but does not work.

When I try to access it with url:     http://localhost:9090/jquery-widgets/fullcalendar

Error message is:

MessageNotUnderstood:  receiver of "encodeCollection:on:" is nil

Thanks for the support

Oswall