AngularJS executing controller twice

During my angularJS adventure i noticed that my controller seems to be running twice, something like getting two alert when testing for result or double responses during HTTP post, like every nubie to a technology, i had asked myself same question i had asked myself as pass through previous hurdle, i had thought to myself have i made a great mistake in choosing this framework.

So After pulling up my pants and sucking it up, i started googling and found out i had made a mistake but not of the choice of framework but that of my code.When i start my first app with angularjs, i started buy writing :

<div data-ng-controller="MyCrtl">

but then i got to the ease of routing then i switch with :

$routeProvider.when('/',{ templateUrl:'patials/sample.html', controller:'MyCrtl'});

but then i left the previous in my 'sample.html' code which was apparently wrong the meaning of this as i gathered is that i am now instructing AngularJS, to digest my controller twice. 

Solution:

Remove the data-ng-controller="'MyCrtl"' from your html code if you have specified controller:'MyCrtl' I hope this can help someone out there.