TypeError: Cannot read property 'token' of null
    at request (http://localhost:8080/ag-push/scripts/app.js:178:23)
    at deferred.promise.then.wrappedCallback (http://localhost:8080/ag-push/bower_components/angular/angular.js:11319:81)
    at deferred.promise.then.wrappedCallback (http://localhost:8080/ag-push/bower_components/angular/angular.js:11319:81)
    at http://localhost:8080/ag-push/bower_components/angular/angular.js:11405:26
    at Scope.$RootScopeProvider.$get.Scope.$eval (http://localhost:8080/ag-push/bower_components/angular/angular.js:12412:28)
    at Scope.$RootScopeProvider.$get.Scope.$digest (http://localhost:8080/ag-push/bower_components/angular/angular.js:12224:31)
    at Scope.$RootScopeProvider.$get.Scope.$apply (http://localhost:8080/ag-push/bower_components/angular/angular.js:12516:24)
    at HTMLDocument.<anonymous> (http://localhost:8080/ag-push/bower_components/angular/angular.js:9567:22)
    at HTMLDocument.jQuery.event.dispatch (http://localhost:8080/ag-push/bower_components/jquery/dist/jquery.js:4409:9)
    at HTMLDocument.elemData.handle (http://localhost:8080/ag-push/bower_components/jquery/dist/jquery.js:4095:28) angular.js:9778
4
Server returned :