SignalR 已识别的项目之一的格式无效

Question

请告诉我，我正在使用 SignalR + Unity 捆绑包制作游戏。服务器正在运行，当您在计算机上运行它时，android游戏正在运行，当您将其传输到设备本身时，我在 StartAsync 方法中收到错误：

Error: One of the identified items was in an invalid format. 
Part StackTrace: System.Net.Http.Headers.HttpHeaders.AddInternal (System.String name, System.Collections.Generic.IEnumerable`1[T] values, System.Net.Http.Headers.HeaderInfo headerInfo, System.Boolean ignoreInvalid) (at <efff4cb93af94c0c950db61b78368b54>:0)
System.Net.Http.Headers.HttpHeaders.Add (System.String name, System.Collections.Generic.IEnumerable`1[T] values) (at <efff4cb93af94c0c950db61b78368b54>:0)
System.Net.Http.Headers.HttpHeaders.Add (System.String name, System.String value) (at <efff4cb93af94c0c950db61b78368b54>:0)
Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.CreateHttpClient () (at <fc48509a267447ccb7af409e5c632056>:0)
Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.set_RemoteEndPoint (System.Net.EndPoint value) (at <fc48509a267447ccb7af409e5c632056>:0)
Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionFactory+<ConnectAsync>d__3.MoveNext () (at <fc48509a267447ccb7af409e5c632056>:0)

Unity 2020.3.32 netstandart 2.0

SignalR version 6.0.3

我搜索在互联网上，他们说这个问题已解决，但我不明白如何解决。有人解决这个问题了吗？