Button to Open New Activity from fragment

Question

I am trying to Open a new Activity from a fragment with the following code

 

Button button = view.FindViewById<Button>(Resource.Id.button1);
            button.Click += StartNewActivity;

            void StartNewActivity(object sender, EventArgs e)
            {
                Intent intent = new Intent(this.Activity, typeof(fragment4));
                StartActivity(intent);
            }

 But i get the following errors

 

 

 

 Any Idea is Ultimately Welcomed!