getPositionUsingMethodName throwing not object error

[imamirkhan]

Hi All,

I am using getPositionUsingMethodName method to the lat/log using cellular Id but unfortunately it is throwing the below error
"TypeError: Value undefined (result of expression serviceObj.getPositionUsingMethodName) is not object.

Here's the code, do let me know what am I missing?

Thanks in advance,
Amir

function getLocate1(){
try {
    serviceObj = nokia.device.load("geolocation");
    alert(serviceObj);
    var methodName = "Cellular ID";            
    serviceObj.getPositionUsingMethodName(getresult, methodName,errCallback);
    
} 
catch (e) { 
    var error = e.toString();
    alert(error);
}

}

function getresult(position,methodName){ 
        alert("Latitude:"+position.coords.latitude);
        alert("Longitude:"+position.coords.longitude);
        alert(methodName);
}

function errCallback(e){
    alert(e);
}