Signalr 使用信号器实用程序Crank.exe时出错

我正在使用crank对我的信号器应用程序进行负载测试。我使用的命令如下

crank /NumClients:100 /Url:http://localhost:29573/TestConnection /BatchSize:10   

我的powershell窗口中出现如下异常

Unhandled Exception: System.AggregateException: One or more errors occurred. ---> System.NullReferenceException: Object
reference not set to an instance of an object.
   at Microsoft.AspNet.SignalR.Client.HubConnection.GetUrl(String url, Boolean useDefaultUrl) in c:\Users\t-niraj\Deskto
p\SignalR-master\src\Microsoft.AspNet.SignalR.Client\HubConnection.cs:line 216
   at Microsoft.AspNet.SignalR.Client.HubConnection..ctor(String url, Boolean useDefaultUrl) in c:\Users\t-niraj\Desktop
\SignalR-master\src\Microsoft.AspNet.SignalR.Client\HubConnection.cs:line 38
   at Microsoft.AspNet.SignalR.Client.HubConnection..ctor(String url) in c:\Users\t-niraj\Desktop\SignalR-master\src\Mic
rosoft.AspNet.SignalR.Client\HubConnection.cs:line 28
   at Microsoft.AspNet.SignalR.Crank.Client.<OpenControllerConnection>d__6.MoveNext() in c:\Users\t-niraj\Desktop\Signal
R-master\src\Microsoft.AspNet.SignalR.Crank\Client.cs:line 71
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNet.SignalR.Crank.Client.<Run>d__0.MoveNext() in c:\Users\t-niraj\Desktop\SignalR-master\src\Microsof
t.AspNet.SignalR.Crank\Client.cs:line 43
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.Wait()
   at Microsoft.AspNet.SignalR.Crank.Client.Main() in c:\Users\t-niraj\Desktop\SignalR-master\src\Microsoft.AspNet.Signa
lR.Crank\Client.cs:line 34  

我确实有一个示例应用程序：SignalR.LoadTestHarness在localhost:29573上运行。这与信号源代码示例中的应用程序相同

我做错了什么

您没有提供ControllerUrl参数，因此crank是，这将导致在第行抛出NullReferenceException