Problem with the "alert" box.

Hi,

We are using Sencha Architect 3 and ExtJS 4.2.x.



I have 2 projects in my machine.

In one project following code for 'alert' is working.

Code:

---

Ext.Msg.alert('Status', 'Changes saved successfully.');

---

But the same code giving the following error in another project.

Uncaught TypeError: Cannot call method 'alert' of undefined


Please help.



Regards,

SivaPrasad.B