在第一步机器人框架v4之后，将访问器传递到WaterfallDialog会导致错误

public class MyDialog : ComponentDialog
{
    private readonly IStatePropertyAccessor<DialogState> _dialogStateAccessor;

    public MyDialog(UserState userState)
        : base(nameof(MyDialog))
    {
        _dialogStateAccessor = userState.CreateProperty<DialogState>(nameof(DialogState));

        // 其他对话步骤的初始化
    }

    // 对话的其他步骤和逻辑
}

private async Task<DialogTurnResult> Step1Async(WaterfallStepContext stepContext, CancellationToken cancellationToken)
{
    var dialogState = await _dialogStateAccessor.GetAsync(stepContext.Context, () => new DialogState());

    // 使用对话状态进行逻辑处理

    return await stepContext.NextAsync();
}

public class MainDialog : ComponentDialog
{
    private readonly UserState _userState;

    public MainDialog(UserState userState)
        : base(nameof(MainDialog))
    {
        _userState = userState;

        // 其他对话步骤的初始化
    }

    protected override async Task<DialogTurnResult> OnBeginDialogAsync(DialogContext innerDc, object options, CancellationToken cancellationToken = default(CancellationToken))
    {
        var dialogState = await _dialogStateAccessor.GetAsync(innerDc.Context, () => new DialogState());

        // 使用对话状态进行逻辑处理

        return await base.OnBeginDialogAsync(innerDc, options, cancellationToken);
    }
}