=====> Lightning component <======

<aura:component implements="force:appHostable">
           <ui:button press="{!c.navigateIt}"  label="Go!" />
</aura:component>

======> Lightning Component Controller <======

var navigateIt : function(component,helper,event)
{
        var navigate = $A.get("e.force:navigateToURL");
        navigate.setParams({ "url" : http://www.google.com"});
        navigate.fire();
}

Getting Error : Something gone wrong :Cannot read property 'setParams' of undefined
in lightning classic but working fine in lightning experiance and salesforce 1 

How can i achieve the same in lightning classing using events?

Thanks in advance .... :)
 

hello everyone,
                     I have a vf which shows a picklist1 of all object and  another which show its repective field, i have another picklist2 which again show list of all object with its respective fields.
                      when i select an object form picklist1 and its respective field and then i select other object from picklist2 and its respective field.
  i want to map the field of both the object which i select form the picklists .Like we do in Lead Custom Field Mapping custom lead mapping .
 i want to do same with the visualforce page.

thanks in advance 

when i click delete it deletes all the custom views but i want to override the action performed by the delete.

Hello Everyone,
                       I want to display the relationship between two objects(MD or Lookup) on visualforce page and  If i choose one object from one picklist then it shoul show picklist of its all related obejct and their relationship type  (MD or Lookup) on vf.how can i achieve it??
  Thanks in advance..