* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

과제 진행 중 에뮬레이터를 실행하려고 하는데 코맨드 팔레트에 원래 뜨던 에뮬레이터가 안나오고

실행을 하려니 아래와 같은 에러 메세지가 뜹니다

Crash when compiling null,

at character offset null:

Null check operator used on a null value

#0      InferableTypeBuilderMixin.type (package:front_end/src/fasta/builder/type_builder.dart:392:29)

#1      InferableTypeBuilder.inferType (package:front_end/src/fasta/builder/omitted_type_builder.dart:155:12)

#2      SourceLoader.performTopLevelInference (package:front_end/src/fasta/source/source_loader.dart:2358:19)

#3      KernelTarget.buildOutlines.<anonymous closure> (package:front_end/src/fasta/kernel/kernel_target.dart:532:14)

<asynchronous suspension>

#4      withCrashReporting (package:front_end/src/fasta/crash.dart:122:12)

#5      _buildInternal (package:front_end/src/kernel_generator_impl.dart:139:7)

<asynchronous suspension>

#6      withCrashReporting (package:front_end/src/fasta/crash.dart:122:12)

<asynchronous suspension>

#7      generateKernel.<anonymous closure> (package:front_end/src/kernel_generator_impl.dart:47:12)

<asynchronous suspension>

#8      generateKernel (package:front_end/src/kernel_generator_impl.dart:46:10)

<asynchronous suspension>

#9      kernelForModule (package:front_end/src/api_prototype/kernel_generator.dart:100:11)

<asynchronous suspension>

#10     SingleShotCompilerWrapper.compileInternal (file:///C:/b/s/w/ir/cache/builder/sdk/pkg/vm/bin/kernel_service.dart:412:11)

<asynchronous suspension>

#11     Compiler.compile.<anonymous closure> (file:///C:/b/s/w/ir/cache/builder/sdk/pkg/vm/bin/kernel_service.dart:221:45)

<asynchronous suspension>

#12     _processLoadRequest (file:///C:/b/s/w/ir/cache/builder/sdk/pkg/vm/bin/kernel_service.dart:914:37)

<asynchronous suspension>
2


Exited (252)