Class extend upgrade from 1.1.1 to 2.3.0
I am updating my code from 1.1.1 to 2.3.0, I've made all the changes required by the upgrade guide (and the comments). When I create a base class from a panel and then extend the base class I keep getting the loader error:
Uncaught Error: [Ext.Loader] Failed loading 'Base/Panel.js', please verify that the file exists
An example of the code I use is:
Am I missing something, has someone else faced similar issues?
-- Edit --
Noticed this was happening because I had all the classes in a single file. I just want to upgrade easily. So my new question would be: Is there a way of leaving all the classes in a single file?