When I try to destroy an Extjs Panel I query the panel like this:
Ext.getCmp('panel-117').destroy();
Then I get that error.
When I print (console) the Panel I see it:
ctor {initialConfig: {…}, $iid: 605, id: "panel-117", autoGenId: true, protoEl: null, …}
So I render the 'panel-117' (for example) and it's children components into the 'div' and when the user closes the widow I need to manually destroy those panels.
Any Idea?