can't drag

[IvanIIk137]

Hi, on mobile platform daragndrop dont work^ on web give error ══╡ EXCEPTION CAUGHT BY GESTURE ╞═══════════════════════════════════════════════════════════════════ The following assertion was thrown while handling a gesture: Assertion failed: [file:///Users/ivan/development/flutter/.pub-cache/hosted/pub.dartlang.org/syncfusion_flutter_calendar-20.1.48/lib/src/calendar/views/calendar_view.dart:13355:10]() ../…/views/calendar_view.dart:13355 customObject != null "Implement convertToCalendarAppointment method from CalendarDataSource" When the exception was thrown, this was the stack: dart-sdk[/lib/_internal/js_dev_runtime/private/ddcruntime/errors.dart]() 251:49 throw dart-sdk[/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart]() 29:3 assertFailed packages[/syncfusion_flutter_calendar/src/calendar/views/calendar_view.dart]() 13355:22 _getCalendarAppointmentToObject packages[/syncfusion_flutter_calendar/src/calendar/views/calendar_view.dart]() 857:42 [_handleAppointmentDragStart] packages[/syncfusion_flutter_calendar/src/calendar/views/calendar_view.dart]() 2380:7 [_handleDragStart] packages[/syncfusion_flutter_calendar/src/calendar/views/calendar_view.dart]() 707:37 packages[/flutter/src/gestures/monodrag.dart]() 429:45 packages[/flutter/src/gestures/recognizer.dart]() 198:24 invokeCallback packages[/flutter/src/gestures/monodrag.dart]() 429:7 [_checkStart] packages[/flutter/src/gestures/monodrag.dart]() 349:7 acceptGesture packages[/flutter/src/gestures/arena.dart]() 264:11 [_resolveInFavorOf] packages[/flutter/src/gestures/arena.dart]() 223:9 [_resolve] packages[/flutter/src/gestures/arena.dart]() 53:12 resolve packages[/flutter/src/gestures/recognizer.dart]() 306:12 resolve packages[/flutter/src/gestures/monodrag.dart]() 317:47 handleEvent packages[/flutter/src/gestures/pointer_router.dart]() 94:12 [_dispatch] packages[/flutter/src/gestures/pointer_router.dart]() 139:9 dart-sdk[/lib/_internal/js_dev_runtime/private/linked_hash_map.dart]() 21:13 forEach packages[/flutter/src/gestures/pointer_router.dart]() 137:17 [_dispatchEventToRoutes] packages[/flutter/src/gestures/pointer_router.dart]() 123:7 route packages[/flutter/src/gestures/binding.dart]() 439:19 handleEvent packages[/flutter/src/gestures/binding.dart]() 419:14 dispatchEvent packages[/flutter/src/rendering/binding.dart]() 322:11 dispatchEvent packages[/flutter/src/gestures/binding.dart]() 374:7 [_handlePointerEventImmediately] packages[/flutter/src/gestures/binding.dart]() 338:5 handlePointerEvent packages[/flutter/src/gestures/binding.dart]() 296:7 [_flushPointerEventQueue] packages[/flutter/src/gestures/binding.dart]() 279:32 [_handlePointerDataPacket] lib[/_engine/engine/platform_dispatcher.dart]() 1026:13 invoke1 lib[/_engine/engine/platform_dispatcher.dart]() 184:5 invokeOnPointerDataPacket lib[/_engine/engine/pointer_binding.dart]() 130:39 [_onPointerData] lib[/_engine/engine/pointer_binding.dart]() 533:16 lib[/_engine/engine/pointer_binding.dart]() 496:21 lib[/_engine/engine/pointer_binding.dart]() 210:16 loggedHandler Handler: "onStart" Recognizer: HorizontalDragGestureRecognizer#10c9a ════════════════════════════════════════════════════════════════════════════════════════════════════ 129 Another exception was thrown: Assertion failed:

[osamagamal65]

The same issue happened to me.