Kill All The Programmers

It was:

// Application's initialization
Ext.onReady(function() {

    ...

});

and it worked without any problems.

Now they have made it "simpler, faster and stable":

// Register namespaces and their corresponding paths to Ext.Loader
Ext.Loader.setPath({
    'AppName': 'app',
    ... // Other namespaces
});

// Specify a list of classes your application your application needs
Ext.require([
    ...
]);

// Application's initialization
Ext.onReady(function() {

    ...

});

and the result is:


I carry on to state: the authors of perfect software must be killed as soon as possible to do not let them make "improvements"