Microsoft.Bot.Connector error : service provider instance was not register

Question

我遵循了 Microsoft/BotBuilder

上的示例代码

当我向机器人发送消息时，出现了这样的错误消息：

The service provider instance was not register. Please call RegisterServiceProvider before using ServiceProvider.Instance.

发生在 var appCredentials = new MicrosoftAppCredentials(this._configuration);

.csproj

<PropertyGroup>
   <TargetFramework>netcoreapp1.1</TargetFramework>
</PropertyGroup>
<ItemGroup>
   <PackageReference Include="Microsoft.AspNetCore" Version="1.1.1" />
   <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.2" />
   <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="1.1.1" />
   <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="1.1.1" />
   <PackageReference Include="Microsoft.Bot.Connector.AspNetCore" Version="3.6.0-alpha" />
   <PackageReference Include="Microsoft.Bot.Connector.AspNetCore.Mvc" Version="3.6.0-alpha" />
   <PackageReference Include="Microsoft.Bot.Connector.Common" Version="3.6.0-alpha" />
   <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="1.1.1" />
   <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="1.1.1" /> 
<PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="1.1.1" />
 </ItemGroup>

代码

• appsettings.json

  { "MicrosoftAppId": "xxxxxxxxx", "MicrosoftAppPassword": "xxxxxxxxxxxxxxxxxx" }

• Startup.cs

  public IConfigurationRoot Configuration { get; }
  public Startup(IHostingEnvironment env)
  {
      var builder = new ConfigurationBuilder()
          .SetBasePath(env.ContentRootPath)
          .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
          .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
          .AddEnvironmentVariables();
      Configuration = builder.Build();
  }
  
  
  // This method gets called by the runtime. Use this method to add services to the container.
  public void ConfigureServices(IServiceCollection services)
  {
      services.AddSingleton(_ => Configuration);
  
      // Add framework services.
      services.AddMvc(options =>
      {
          options.Filters.Add(typeof(TrustServiceUrlAttribute));
      });
  
  
  }
  
  // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
  public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
  {
      loggerFactory.AddConsole(Configuration.GetSection("Logging"));
      loggerFactory.AddDebug();
  
  
      app.UseStaticFiles();
      app.UseBotAuthentication(new StaticCredentialProvider(
          Configuration.GetSection(MicrosoftAppCredentials.MicrosoftAppIdKey)?.Value,
          Configuration.GetSection(MicrosoftAppCredentials.MicrosoftAppPasswordKey)?.Value));
      app.UseMvc();
  }
  

• Webapi - 控制器

  [HttpPost]
  [Route("Send")]
  public async Task<HttpResponseMessage> Send([FromBody]Activity activity)
  {
          //Error happens on this line!!!
          var appCredentials = new MicrosoftAppCredentials(this._configuration);
          var connector = new ConnectorClient(new Uri(activity.ServiceUrl), appCredentials);
  
          var reply = activity.CreateReply();
  
          if (activity.Type == ActivityTypes.Message)
          {
              // calculate something for us to return
              int length = (activity.Text ?? string.Empty).Length;
              // return our reply to the user
              reply = activity.CreateReply($"You sent {activity.Text} which was {length} characters");
          }
          else
          {
              //....
          }
  
          await connector.Conversations.ReplyToActivityAsync(reply);
          var response = new HttpResponseMessage(HttpStatusCode.OK);
          return response;
  }
  

错误（使用模拟器测试）

1. 留言

   The service provider instance was not register. Please call RegisterServiceProvider before using ServiceProvider.Instance.

2. 来源

   Microsoft.Bot.Connector.Common

3. 堆栈跟踪

   at Microsoft.Bot.Connector.ServiceProvider.ThrowOnNullInstance() at Microsoft.Bot.Connector.MicrosoftAppCredentials..ctor(IConfiguration configuration, ILogger logger) at LotoBot.Webapi.Controllers.FbMsgController.d__4.MoveNext()

卡了一晚上，求大神指教，万分感谢！

Answer 1

只需在 Startup class 的 ConfigureServices 方法上调用 services.UseBotConnector()。 此方法由 Microsoft.Bot.Connector.BotServiceProviderExtensions 扩展 class.

提供