I am getting a combination of these two errors below when instituting SignalR

 

 

System.IO.InvalidDataException: Invalid negotiation response received.   ---> System.Text.Json.JsonReaderException: '<' is an invalid start of a value. LineNumber: 2 | BytePositionInLine: 0.     at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan`1 bytes)     at System.Text.Json.Utf8JsonReader.ConsumeValue(Byte marker)     at System.Text.Json.Utf8JsonReader.ReadFirstToken(Byte first)     at System.Text.Json.Utf8JsonReader.ReadSingleSegment()     at System.Text.Json.Utf8JsonReader.Read()     at Microsoft.AspNetCore.Internal.SystemTextJsonExtensions.CheckRead(Utf8JsonReader& reader)     at Microsoft.AspNetCore.Http.Connections.NegotiateProtocol.ParseResponse(ReadOnlySpan`1 content)     --- End of inner exception stack trace ---     at Microsoft.AspNetCore.Http.Connections.NegotiateProtocol.ParseResponse(ReadOnlySpan`1 content)     at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.NegotiateAsync(Uri url, HttpClient httpClient, ILogger logger, CancellationToken cancellationToken)     at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.GetNegotiationResponseAsync(Uri uri, CancellationToken cancellationToken)     at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.SelectAndStartTransport(TransferFormat transferFormat, CancellationToken cancellationToken)     at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.StartAsyncCore(TransferFormat transferFormat, CancellationToken cancellationToken)     at System.Threading.Tasks.ForceAsyncAwaiter.GetResult()     at Microsoft.AspNetCore.Http.Connections.Client.HttpConnection.StartAsync(TransferFormat transferFormat, CancellationToken cancellationToken)     at Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionFactory.ConnectAsync(EndPoint endPoint, CancellationToken cancellationToken)     at Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionFactory.ConnectAsync(EndPoint endPoint, CancellationToken cancellationToken)     at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncCore(CancellationToken cancellationToken)     at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsyncInner(CancellationToken cancellationToken)     at System.Threading.Tasks.ForceAsyncAwaiter.GetResult()     at Microsoft.AspNetCore.SignalR.Client.HubConnection.StartAsync(CancellationToken cancellationToken)     at TexicanInc.Pages.UserPages.ActiveWorkQueue.OnInitializedAsync() in C:\Users\ShawnRye\source\repos\TexicanInc\TexicanInc\Pages\UserPages\ActiveWorkQueue.razor:line 548



System.Threading.Tasks.TaskCanceledException: A task was canceled.     at Microsoft.JSInterop.JSRuntime.InvokeAsync[TValue](Int64 targetInstanceId, String identifier, Object[] args)     at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args)     at Telerik.Blazor.Components.Common.Animation.AnimationGroupBase.Dispose()     at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__140_0(Object state)     at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteSynchronously(TaskCompletionSource`1 completion, SendOrPostCallback d, Object state)     at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.<>c.<.cctor>b__23_0(Object state)     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)  --- End of stack trace from previous location ---     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)     at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteBackground(WorkItem item)