Hi,
while i run my sench Touch 2+Phonegap+android application,the back button is working fine for one page, the remaining page are showing the error: Uncaught typeError:Cann't call the method 'pop' of undefined.below the code for pop function..
1>onBackTap: function(btn)
{
var mainNav=btn.up('navigationview');
mainNav.pop();
},
2>my back button code is items:{
xtype:'button',
text:'back',
align:'left'
}
3>In ref I put like this: backBtn: 'titlebar button[text=back]',

Thanks in Advance