type 'NoSuchMethodError' is not a subtype of type 'Exception' error on ios 14.4

[mattg1995]

When I use the FutureCupertinoButton it throws this error. I am on:

Flutter 1.22.6 • channel stable • https://github.com/flutter/flutter.git Framework • revision 9b2d32b605 (3 weeks ago) • 2021-01-22 14:36:39 -0800 Engine • revision 2f0af37152 Tools • Dart 2.10.5

Using a simulator with iOS 14.4, error stack below:

GenericFutureButtonState.onPressed (generic_future_button.dart:273)
<asynchronous gap>
GenericFutureButtonState.onPressed (generic_future_button.dart:1)
GestureRecognizer.invokeCallback (recognizer.dart:183)
TapGestureRecognizer.handleTapUp (tap.dart:598)
BaseTapGestureRecognizer._checkUp (tap.dart:287)
BaseTapGestureRecognizer.handlePrimaryPointer (tap.dart:222)
PrimaryPointerGestureRecognizer.handleEvent (recognizer.dart:476)
PrimaryPointerGestureRecognizer.handleEvent (recognizer.dart:1)
PointerRouter._dispatch (pointer_router.dart:77)
PointerRouter._dispatchEventToRoutes.<anonymous closure> (pointer_router.dart:122)
_LinkedHashMapMixin.forEach (compact_hash.dart:377)
PointerRouter._dispatchEventToRoutes (pointer_router.dart:120)
PointerRouter.route (pointer_router.dart:106)
GestureBinding.handleEvent (binding.dart:358)
GestureBinding.dispatchEvent (binding.dart:338)
RendererBinding.dispatchEvent (binding.dart:267)
GestureBinding._handlePointerEvent (binding.dart:295)
GestureBinding._flushPointerEventQueue (binding.dart:240)
GestureBinding._handlePointerDataPacket (binding.dart:213)
GestureBinding._handlePointerDataPacket (binding.dart:1)
_rootRunUnary (zone.dart:1206)
_rootRunUnary (zone.dart:1)
_CustomZone.runUnary (zone.dart:1100)
_CustomZone.runUnaryGuarded (zone.dart:1005)
_invoke1 (hooks.dart:265)
_dispatchPointerDataPacket (hooks.dart:174)

[kekland]

@mattg1995 Hi! Could you check #5 and see if it fixes the issue?