Sencha Touch Uncaught Typeerror: Undefined Is Not A Function

I have recently began to check out Sencha Touch. In following there tutorials I have ran into some issues that I cannot seem to resolve. Some of the basic code in app.js that is p

Solution 1:

Looks like Ext.Application has a capital A. Remember that Javascript is case sensitive.

http://docs.sencha.com/touch/1-1/#!/api/Ext.Application