If the goal is: How to make Blueberry bubble cobbler at home., then the solution is: Wash  4 cups fresh or frozen Blueberries  coat with 1/4 cup Lemon Juice.  Use Pillsbury Cinnamon roll(tube type) from refrigerated section in the market, with rolling pin, roll to less than 1/2 inch thick.  Line the base of a deep metal baking pan/dish with the dough.  Reserve approx. 1/3 of dough for cover.  (You will place this on top after you finish preparing the filling.)  Place blueberries in dish atop the roll dough.  Sprinkle 1 cup granulated sugar, 2 tbs. Brown sugar 1 tablespoons cinnamon, 1/2 cup butter (In small pieces), on top.  Sprinkle 1/2 tablespoon of salt atop.  Place crust over everything.  Bake in the oven at 375 for 40 min.  Remove from oven when crust brown and pie is bubbly.  Enjoy.