I may be doing something wrong, but I took one of my larger projects from Sencha Architect and attempted to restructure it so i could use Cmd. I got the app folder generated, moved in the code from SA, refreshed the bootstrap and then ran sencha app build. The all-classes.js file has Ext.data.ResultSet defined before Ext. It looks like all of the app code is accounted for. Is there something that I am doing wrong?