Hello I'm trying to set attributes for a viewcontroller nested inside a NSMutableArray, for example I have 3 ViewController inside this array:

FirstViewController *firstViewController = [FirstViewController alloc];
SecondViewController *secondViewController = [SecondViewController alloc];
ThirdViewController *thirdViewController = [ThirdViewController alloc];


NSMutableArray *viewControllerClasses = [[NSMutableArray alloc] initWithObjects:
                                         firstViewController,
                                         secondViewController,
                                         thirdViewController,                                       
                                         nil];


for (int x=0; x<[viewControllerClasses count]; x++) {

    // as an example to set managedObjectContext I otherwise would set firstViewController.managedObjectContext = context;

    [viewControllerClasses objectAtIndex:x].managedObjectContext = context;
}

But this results in an error: Request for member "managedObjectContext" in something not a structure or union. Shouldn't be "firstViewController" be the same as [viewControllerClasses objectAtIndex:0]?