인프런 커뮤니티 질문&답변

실행은 잘 되고, 빨간색으로 오류는 없는데, 저장 누르면, 수업과 같이 [Schedule(id~~~000)] 이런 내용에 대한 메시지들이 아닌, 아래와 같은 메시지들이 뜹니다.

널첵과 같은 이슈같은데 모든 것을 점검해 봤을때 수업 내용과 다른 부분이 없었습니다. 어떻게 해결해야 할까요?

E/flutter (27313): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Null check operator used on a null value

E/flutter (27313): #0 ScheduleBottomSheetState.onSavePressed (package:ui/component/schedule_bottom_sheet.dart:116:33)

E/flutter (27313): #1 InkResponseState.handleTap (package:flutter/src/material/inkwell.dart:1096:21)

E/flutter (27313): #2 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:253:24)

E/flutter (27313): #3 TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:627:11)

E/flutter (27313): #4 BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:306:5)

E/flutter (27313): #5 BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:276:7)

E/flutter (27313): #6 GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:163:27)

E/flutter (27313): #7 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:464:20)

E/flutter (27313): #8 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:440:22)

E/flutter (27313): #9 RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:336:11)

E/flutter (27313): #10 GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:395:7)

E/flutter (27313): #11 GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:357:5)

E/flutter (27313): #12 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:314:7)

E/flutter (27313): #13 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:295:7)

E/flutter (27313): #14 _invoke1 (dart:ui/hooks.dart:164:13)

E/flutter (27313): #15 PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:361:7)

E/flutter (27313): #16 _dispatchPointerDataPacket (dart:ui/hooks.dart:91:31)

E/flutter (27313):