flutter - 名称“_SignInFormState”不是类型，不能在重定向的构造函数中使用。尝试重定向到不同的构造函数。扑

Question

我是新来的集团。我的错误是“名称'_SignInFormState'不是类型，不能在重定向的构造函数中使用。尝试重定向到不同的构造函数。颤振。”我生成了冷冻文件。问题仍然存在。

part of 'sign_in_form_bloc.dart';

@freezed
abstract class SignInFormState with _$SignInFormState {
  const factory SignInFormState({
    @required String emailAddress,
    @required String password,
    @required bool showErrorMessages,
    @required bool isSubmitting,
    // @required AuthFailureOrSuccess authFailureOrSuccess,
  }) = _SignInFormState;
  factory SignInFormState.initial() => SignInFormState(
        emailAddress: '',
        password: '',
        showErrorMessages: false,
        isSubmitting: false,
        // authFailureOrSuccess: AuthFailureOrSuccess.none(),
      );
}

我生成了冷冻文件。问题仍然存在。这些是来自 sign_in_form_bloc.dart 的代码

@injectable
class SignInFormBloc extends Bloc<SignInFormEvent, SignInFormState> {
  final IAuthFacade _authFacade;

  SignInFormBloc(this._authFacade) : super(SignInFormState.inital());

  @override
  Stream<SignInFormState> mapEventToState(SignInFormEvent event) async* {
    yield* event.map(
      emailChange: (event) async* {
        yield state.copyWith(
          emailAddress: event.email,
          authFailureOrSuccess: AuthFailureOrSuccess.none(),
        );
      },
      passwordChange: (event) async* {
        yield state.copyWith(
          password: event.password,
          authFailureOrSuccess: AuthFailureOrSuccess.none(),
        );
      },
      signInWithEmailAndPassword: (event) async* {
        final String? email = state.emailAddress;
        final String? password = state.password;

        if (validateEmailAddress(email!) && validatePassword(password!)) {
          yield state.copyWith(
            showErrorMessages: false,
            isSubmitting: true,
            authFailureOrSuccess: AuthFailureOrSuccess.none(),
          );

          var result = await _authFacade.signInWithEmailAndPassword(
            emailAddress: email,
            password: password,
          );

          yield state.copyWith(
            isSubmitting: false,
            authFailureOrSuccess: result!.authFailureOrSuccess,
          );
        } else {
          yield state.copyWith(
              showErrorMessages: true,
              authFailureOrSuccess: AuthFailureOrSuccess.none());
        }
      },
    );
  }
}