C# Azure Bot Framework仿真程序错误-System.ArgumentNullException:值不能为null_C#_Azure_Botframework

C# Azure Bot Framework仿真程序错误-System.ArgumentNullException:值不能为null

c# azure botframework

C# Azure Bot Framework仿真程序错误-System.ArgumentNullException:值不能为null,c#,azure,botframework,C#,Azure,Botframework,我需要一些帮助。我是Azure的机器人框架开发新手，几周前使用QnA KB创建了我的第一个聊天机器人。无论如何，我设法在Azure的门户中创建了bot，它工作得非常好。但我需要在Bot Framework Emulator（使用V4）中进行一些修改和测试，为此，下载并在本地运行我的Bot 我按照Azure的指示下载了bot的.zip文件，并使用Visual Studio 2017作为IDE对其进行了初始化。但是，当我点击“调试”按钮时，程序尝试连接到localhost:3984 using Au

我需要一些帮助。我是Azure的机器人框架开发新手，几周前使用QnA KB创建了我的第一个聊天机器人。无论如何，我设法在Azure的门户中创建了bot，它工作得非常好。但我需要在Bot Framework Emulator（使用V4）中进行一些修改和测试，为此，下载并在本地运行我的Bot

我按照Azure的指示下载了bot的.zip文件，并使用Visual Studio 2017作为IDE对其进行了初始化。但是，当我点击“调试”按钮时，程序尝试连接到localhost:3984

using Autofac;
using System.Web.Http;
using System.Configuration;
using System.Reflection;
using Microsoft.Bot.Builder.Azure;
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Builder.Dialogs.Internals;
using Microsoft.Bot.Connector;

namespace SimpleEchoBot
{
    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            // Bot Storage: This is a great spot to register the private state storage for your bot. 
            // We provide adapters for Azure Table, CosmosDb, SQL Azure, or you can implement your own!
            // For samples and documentation, see: https://github.com/Microsoft/BotBuilder-Azure

            Conversation.UpdateContainer(
                builder =>
                {
                    builder.RegisterModule(new AzureModule(Assembly.GetExecutingAssembly()));

                    // Using Azure Table Storage

                    var store = new TableBotDataStore(ConfigurationManager.AppSettings["AzureWebJobsStorage"]); // requires Microsoft.BotBuilder.Azure Nuget package 

                    // To use CosmosDb or InMemory storage instead of the default table storage, uncomment the corresponding line below
                    // var store = new DocumentDbBotDataStore("cosmos db uri", "cosmos db key"); // requires Microsoft.BotBuilder.Azure Nuget package 
                    // var store = new InMemoryDataStore(); // volatile in-memory store

                    builder.Register(c => store)
                        .Keyed<IBotDataStore<BotData>>(AzureModule.Key_DataStore)
                        .AsSelf()
                        .SingleInstance();

                });
            GlobalConfiguration.Configure(WebApiConfig.Register);
        }
    }
}

因此，我无法在bot框架模拟器中测试我的bot。既然我对C#很陌生，谁能帮我解决这个问题

编辑：以下是代码的web.config部分，仅删除敏感数据：

<?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=301879
  -->
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
  </configSections>
  <appSettings>
    <!-- update these with your Microsoft App Id and your Microsoft App Password-->
    <!--<add key="BotId" value="" />-->
    <add key="MicrosoftAppId" value="" />
    <add key="MicrosoftAppPassword" value="" />
    <add key="QnaSubscriptionKey" value="" />
    <add key="QnaKnowledgebaseId" value="" />
    <add key="AzureWebJobsStorage" value="" />

  </appSettings>
  <!--
    For a description of web.config changes see http://go.microsoft.com/fwlink/?LinkId=235367.

    The following attributes can be set on the <httpRuntime> tag.
      <system.Web>
        <httpRuntime targetFramework="4.6" />
      </system.Web>
  -->
  <system.web>
    <customErrors mode="Off" />
    <compilation debug="true" targetFramework="4.6" />
    <httpRuntime targetFramework="4.6" />
  </system.web>
  <system.webServer>
    <defaultDocument>
      <files>
        <clear />
        <add value="default.htm" />
      </files>
    </defaultDocument>
    <handlers>
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <remove name="OPTIONSVerbHandler" />
      <remove name="TRACEVerbHandler" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http.Primitives" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.2.29.0" newVersion="4.2.29.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.IdentityModel.Tokens.Jwt" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.1.4.0" newVersion="5.1.4.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.IdentityModel.Protocol.Extensions" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-1.0.40306.1554" newVersion="1.0.40306.1554" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Bot.Connector" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.15.2.2" newVersion="3.15.2.2" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Bot.Builder" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.15.2.2" newVersion="3.15.2.2" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Azure.Documents.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-1.11.0.0" newVersion="1.11.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Bot.Builder.History" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.12.2.4" newVersion="3.12.2.4" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Bot.Builder.Autofac" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.15.2.2" newVersion="3.15.2.2" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Data.Services.Client" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.7.0.0" newVersion="5.7.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Data.OData" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.7.0.0" newVersion="5.7.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Data.Edm" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-5.7.0.0" newVersion="5.7.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <system.codedom>
    <compilers>
      <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
      <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" />
    </compilers>
  </system.codedom>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="mssqllocaldb" />
      </parameters>
    </defaultConnectionFactory>
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>
</configuration>




编辑3：尝试解决“请在应用程序设置中设置QnAKnowledgebaseId、QnAAuthKey和QnAEndpointHostName（如果适用）。了解如何在获取它们。”。到目前为止，基本的QnAMakerDialog.cs（qnaAuthKey、qnaKBId和endpointHostName的第一个实例都有属于它们的值，但为了安全起见，我在这里删除了它们）：
使用系统；
使用系统线程；
使用System.Threading.Tasks；
使用Microsoft.Bot.Builder.Azure；
使用Microsoft.Bot.Builder.Dialogs；
使用Microsoft.Bot.Builder.CognitiveServices.QnAMaker；
使用Microsoft.Bot.Connector；
使用系统配置；
命名空间Microsoft.Bot.Sample.QnABot
{
[可序列化]
公共类RootDialog:IDialog
{
公共异步任务StartAsync（IDialogContext上下文）
{
/*等待，直到从对话中收到第一条消息，然后调用MessageReceviedAsync
*来处理这个消息*/
context.Wait（this.MessageReceivedAsync）；
}
专用异步任务消息ReceivedAsync（IDialogContext上下文，IAwaitable结果）
{
/*调用MessageReceivedAsync时，会传递一个IAwaitable。要获取消息，
*等待结果*/
var消息=等待结果；
var qnaAuthKey=GetSetting（“”）；
var qnaKBId=ConfigurationManager.AppSettings[“”]；
var endpointHostName=ConfigurationManager.AppSettings[“”）；
//QnA订阅密钥和知识库Id空验证
如果（！string.IsNullOrEmpty（qnaAuthKey）和&！string.IsNullOrEmpty（qnaKBId））
{
//根据端点主机名是否存在转发到相应的对话框
if（string.IsNullOrEmpty（endpointHostName））
wait context.Forward（新的basicqlnamakerprevewdialog（），AfterAnswerAsync，message，CancellationToken.None）；
其他的
wait context.Forward（new BasicQnAMakerDialog（），AfterAnswerAsync，message，CancellationToken.None）；
}
其他的
{
等待context.PostAsync（“请在应用程序设置中设置QnAKnowledgebaseId、QnAAuthKey和QnAEndpointHostName（如果适用）。了解如何在https://aka.ms/qnaabssetup.");
}
}
应答异步后的专用异步任务（IDialogContext上下文，IAwaitable结果）
{
//等待下一条用户消息
Wait（MessageReceivedAsync）；
}
公共静态字符串设置（字符串键）
{
var value=ConfigurationManager.AppSettings[key]；
if（String.IsNullOrEmpty（value）和&key==“QnAAuthKey”）
{
value=ConfigurationManager.AppSettings[“QnASubscriptionKey”]；//QnASubscriptionKey与QnAMaker的向后兼容性（预览）
}
返回值；
}
}
//QnAMaker预览服务对话框
[可序列化]
公共类BasicQnAMakerPreviewDialog:QnAMakerDialog
{
//去https://qnamaker.ai 并提供数据、培训和发布您的QnA知识库。
//QNAMAKERSERSERVICE的参数为：
//必需：subscriptionKey、knowledgebaseId、，
//可选：defaultMessage，scoreThreshold[范围0.0–1.0]
public BasicQnAMakerPreviewDialog（）：base（新的QnAMakerService（新的QnAMakerAttribute（RootDialog.GetSetting（“QnAAuthKey”）、ConfigurationManager.AppSettings[“QnAKnowledgebaseId”]、“常见问题解答中没有很好的匹配”，0.5）））
{ }
}
//QnAMaker GA服务对话框
[可序列化]
公共类BasicQnAMakerDialog:QnAMakerDialog
{
//去https://qnamaker.ai 并提供数据、培训和发布您的QnA知识库。
//QNAMAKERSERSERVICE的参数为：
//必需：qnaAuthKey、knowledgebaseId、endpointHostName
//可选：defaultMessage，scoreThreshold[范围0.0–1.0]
public BasicQnAMakerDialog（）：base（新的QnAMakerService（新的QnAMakerAttribute）（RootDialog.GetSetting（“QnAAuthKey”）、ConfigurationManager.AppSettings[“QnAKnowledgebaseId”]，“Desculpe，não entendi muito bem sua pergunta…Poderia Refrazè-la de forma differentient？Caso játenha tentado，talvez eu ainda não saiba como responder sua dúvida.”，0.3,1，ConfigurationManager.AppSettings[“QnAEndpointHostName”]））
{ }
}
}
正如错误所述，这里的问题是，azurewebjobstorage
无法在web.config
文件中找到。要解决您的问题，请在azure portal中导航到您的机器人，然后单击左侧刀片服务器上的应用程序设置。在这里，您可以找到一个带有键azurewebjobstorage的设置。
复制设置值并将其粘贴到web.config
文件中，如下所示：
<configuration>
  <appSettings>
    <!-- update these with your BotId, Microsoft App Id and your Microsoft App Password-->
    <add key="BotId" value="YourBotId" />
   <add key="MicrosoftAppId" value="" />
   <add key="MicrosoftAppPassword" value="" />
    <add key="QnaSubscriptionKey" value="" />
    <add key="QnaKnowledgebaseId" value="" />
    <add key="AzureWebJobsStorage" value="copied value from azure portal" />
  </appSettings>

这一点没有任何变化。
第二，正如韩非所说：
Utils.GetAppSetting（字符串键）方法适用于运行在Azure上的机器人程序，如果
using System;
using System.Threading;
using System.Threading.Tasks;

using Microsoft.Bot.Builder.Azure;
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Builder.CognitiveServices.QnAMaker;
using Microsoft.Bot.Connector;
using System.Configuration;
namespace Microsoft.Bot.Sample.QnABot
{
    [Serializable]
    public class RootDialog : IDialog<object>
    {
        public async Task StartAsync(IDialogContext context)
        {
            /* Wait until the first message is received from the conversation and call MessageReceviedAsync 
            *  to process that message. */
            context.Wait(this.MessageReceivedAsync);
        }

        private async Task MessageReceivedAsync(IDialogContext context, IAwaitable<IMessageActivity> result)
        {
            /* When MessageReceivedAsync is called, it's passed an IAwaitable<IMessageActivity>. To get the message,
             *  await the result. */
            var message = await result;

            var qnaAuthKey = GetSetting("");
            var qnaKBId = ConfigurationManager.AppSettings[""];
            var endpointHostName = ConfigurationManager.AppSettings[""];

            // QnA Subscription Key and KnowledgeBase Id null verification
            if (!string.IsNullOrEmpty(qnaAuthKey) && !string.IsNullOrEmpty(qnaKBId))
            {
                // Forward to the appropriate Dialog based on whether the endpoint hostname is present
                if (string.IsNullOrEmpty(endpointHostName))
                    await context.Forward(new BasicQnAMakerPreviewDialog(), AfterAnswerAsync, message, CancellationToken.None);
                else
                    await context.Forward(new BasicQnAMakerDialog(), AfterAnswerAsync, message, CancellationToken.None);
            }
            else
            {
                await context.PostAsync("Please set QnAKnowledgebaseId, QnAAuthKey and QnAEndpointHostName (if applicable) in App Settings. Learn how to get them at https://aka.ms/qnaabssetup.");
            }

        }

        private async Task AfterAnswerAsync(IDialogContext context, IAwaitable<IMessageActivity> result)
        {
            // wait for the next user message
            context.Wait(MessageReceivedAsync);
        }

        public static string GetSetting(string key)
        {
            var value = ConfigurationManager.AppSettings[key];
            if (String.IsNullOrEmpty(value) && key == "QnAAuthKey")
            {
                value = ConfigurationManager.AppSettings["QnASubscriptionKey"]; // QnASubscriptionKey for backward compatibility with QnAMaker (Preview)
            }
            return value;
        }
    }

    // Dialog for QnAMaker Preview service
    [Serializable]
    public class BasicQnAMakerPreviewDialog : QnAMakerDialog
    {
        // Go to https://qnamaker.ai and feed data, train & publish your QnA Knowledgebase.
        // Parameters to QnAMakerService are:
        // Required: subscriptionKey, knowledgebaseId, 
        // Optional: defaultMessage, scoreThreshold[Range 0.0 – 1.0]
        public BasicQnAMakerPreviewDialog() : base(new QnAMakerService(new QnAMakerAttribute(RootDialog.GetSetting("QnAAuthKey"), ConfigurationManager.AppSettings["QnAKnowledgebaseId"], "No good match in FAQ.", 0.5)))
        { }
    }

    // Dialog for QnAMaker GA service
    [Serializable]
    public class BasicQnAMakerDialog : QnAMakerDialog
    {
        // Go to https://qnamaker.ai and feed data, train & publish your QnA Knowledgebase.
        // Parameters to QnAMakerService are:
        // Required: qnaAuthKey, knowledgebaseId, endpointHostName
        // Optional: defaultMessage, scoreThreshold[Range 0.0 – 1.0]
        public BasicQnAMakerDialog() : base(new QnAMakerService(new QnAMakerAttribute(RootDialog.GetSetting("QnAAuthKey"), ConfigurationManager.AppSettings["QnAKnowledgebaseId"], "Desculpe, não entendi muito bem sua pergunta... Poderia refazê-la de forma diferente? Caso já tenha tentado, talvez eu ainda não saiba como responder sua dúvida.", 0.3, 1, ConfigurationManager.AppSettings["QnAEndpointHostName"])))
        { }

    }
}

<configuration>
  <appSettings>
    <!-- update these with your BotId, Microsoft App Id and your Microsoft App Password-->
    <add key="BotId" value="YourBotId" />
   <add key="MicrosoftAppId" value="" />
   <add key="MicrosoftAppPassword" value="" />
    <add key="QnaSubscriptionKey" value="" />
    <add key="QnaKnowledgebaseId" value="" />
    <add key="AzureWebJobsStorage" value="copied value from azure portal" />
  </appSettings>

var store = new TableBotDataStore(ConfigurationManager.AppSettings["AzureWebJobsStorage"]); 

var qnaKBId = ConfigurationManager.AppSettings["QnAKnowledgebaseId"];

//var qnaKBId = Utils.GetAppSetting("QnAKnowledgebaseId");
var qnaKBId = ConfigurationManager.AppSettings["QnAKnowledgebaseId"];