Preheat oven to 325F. Mix the crumbs and butter and press into the bottom of an 8"x8" or 9"x9" baking pan that has been sprayed with nontstick spray. Sprinkle the coconut evenly overtop, then the chocolate chips and pecans, and pour a can of sweetened condensed milk overtop. Bake for about 30 minutes, until golden and bubbly around the edges. Cool competely before cutting. Makes 16 (or more) bars.