I am attempting to look at a few downloaded widgets - HTML, Pay Pal donation for example. I do the dev/build . .but when I drag a particular widget over to add it to the page, I notice a bad widget class name given error where the widget was located in the list. In looking at my logs I see this error:

Warning at sapphire/widgets/Widget.php line 116: Bad widget class: NoWidgets

Can someone tell me what I am doing? The twitter widgets with the twitter module work fine . but no widget I download from the site seems to work.

Also . .I am trying to enable widgets in a custom page type ..not in blog module.