PS E:\nspserver> dotnet NSmartProxy.ServerHost.dll Starting up as a console service host Service NSPServer started Initializing.. 190826 16:03:28.495 [1] DEBUG NSmartServer - NSmartProxy Server v1.0_Alpha 190826 16:03:28.792 [1] DEBUG NSmartServer - ClientManager initialized 190826 16:03:28.808 [1] DEBUG NSmartServer - Listening client on port 7842... 190826 16:03:28.823 [1] DEBUG NSmartServer - NSmart server started 190826 16:03:28.870 [1] DEBUG NSmartServer - 25 files cached. 190826 16:03:28.886 [1] DEBUG NSmartServer - Listening HTTP request on port 12309... 190826 16:03:28.901 [1] DEBUG NSmartServer - Listening config request on port 7841... 190826 16:03:54.308 [7] ERROR NSmartServer - Exception has been thrown by the target of an invocation. System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Argum entNullException: Array cannot be null. Parameter name: bytes at System.Text.Encoding.GetString(Byte[] bytes) at NSmartProxy.Extension.HttpServer.Login(String username, String userpwd) in E:\3000开元\NSmartProxy\src\NSmartProxy \Extension\HttpServer_APIs.cs:line 158 --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boo lean wrapExceptions) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters , CultureInfo culture) at NSmartProxy.Extension.HttpServer.ProcessHttpRequestAsync(HttpListenerContext context) in E:\3000开元\NSmartProxy\s rc\NSmartProxy\Extension\HttpServer.cs:line 208