CristhianVeAl

type '(MethodCall) => Null' is not a subtype of type '((MethodCall) => Future<dynamic>)?' in type cast

4

════════ Exception caught by widgets library ═══════════════════════════════════ The following _CastError was thrown attaching to the render tree: type '(MethodCall) => Null' is not a subtype of type '((MethodCall) => Future)?'...