Ionic ui-router onEnter check throw errors at 2nd time around - angularjs

Question

So I have this very strange error: I want to check if a user is login when enter a state and redirect them back to SignIn page if they are not. So in my config I have:
.state('home', {
cache: false,
abstract: true,
url: "/home",
templateUrl: "app/home/home.html",
onEnter: function($state, MyFirebaseService) {
// check session
var userId = MyFirebaseService.LoginUserId();
if (!userId) {
$state.go('auth.signin')
};
}
})
So I type in http://localhost:8100/#/home/courses to go into courses page without login, everything work perfectly. User got redirect back to auth.signin view. But when I type in the address bar again http://localhost:8100/#/home/courses, it throw 4 errors:
TypeError: Cannot read property '#' of null
TypeError: Cannot read property 'auth-signin#auth' of null
TypeError: Cannot read property 'auth-signup#auth' of null
My signin and signup are in an abstract view call auth. Why is that and how to fix it?

Answer 1

I personnaly perform those actions of authenticatio ncontrol on .run( with event catcher :
.run([
'$rootScope','authService','$q',
function($rootScope, authService,q) {
$rootScope.$on('$stateChangeStart', function(event, next, current) {
// YOUR CONTROL & REDIRECT
});
}]);
If you add some authorisation role control for instance on ui-router, for instance:
.state('home', {
url: "/home",
templateUrl: "includes/pages/homePage.html",
resolve : {
authorizedRoles : function(){ return [ USER_ROLES['su'],
USER_ROLES['user'],
USER_ROLES['admin'],
USER_ROLES['skyadmin'],
USER_ROLES['skyuser'],
USER_ROLES['skysu']
] }
}
})
You can easily check into $stateChangeStart with var authorizedRoles = next.resolve.authorizedRoles(); and compare them with your user roles