I have extended the Portlet example to include displaying a pie chart. I am running 4.0.2a. I get an exception
Uncaught Ext.Error: Cannot create an instance of unrecognized alias: series.pie ext-core-dev.js:8336
The portlet extends Panel and the Pie chart is defined via an xtype "chart", with a series containing a type of "pie". Any help would be appreciated.