1401/03/23 |

بخش 43 فصل20

سلام خسته نباشید

 در فصل 20 بخش استفاده از تخفیف بدون نیاز به کد تخفیف

زمانی که پروژه را اجرا می کنم ارور زیر را می دهد .ممنون می شم راهنماییم کنید:

"A timeout occurred after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 }, OperationsCountServerSelector }. Client view of cluster state is { ClusterId : \"1\", Type : \"Unknown\", State : \"Disconnected\", Servers : [{ ServerId: \"{ ClusterId : 1, EndPoint : \"Unspecified/localhost:27017\" }\", EndPoint: \"Unspecified/localhost:27017\", ReasonChanged: \"Heartbeat\", State: \"Disconnected\", ServerVersion: , TopologyVersion: , Type: \"Unknown\", HeartbeatException: \"MongoDB.Driver.MongoConnectionException: An exception occurred while opening a connection to the server.\r\n ---> System.Net.Sockets.SocketException (10061): No connection could be made because the target machine actively refused it.\r\n   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)\r\n   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)\r\n   at System.Threading.Tasks.ValueTask.ValueTaskSourceAsTask.<>c.<.cctor>b__4_0(Object state)\r\n--- End of stack trace from previous location ---\r\n   at MongoDB.Driver.Core.Connections.TcpStreamFactory.ConnectAsync(Socket socket, EndPoint endPoint, CancellationToken cancellationToken)\r\n   at MongoDB.Driver.Core.Connections.TcpStreamFactory.CreateStreamAsync(EndPoint endPoint, CancellationToken cancellationToken)\r\n   at MongoDB.Driver.Core.Connections.BinaryConnection.OpenHelperAsync(CancellationToken cancellationToken)\r\n   --- End of inner exception stack trace ---\r\n   at MongoDB.Driver.Core.Connections.BinaryConnection.OpenHelperAsync(CancellationToken cancellationToken)\r\n   at MongoDB.Driver.Core.Servers.ServerMonitor.InitializeConnectionAsync(CancellationToken cancellationToken)\r\n   at MongoDB.Driver.Core.Servers.ServerMonitor.HeartbeatAsync(CancellationToken cancellationToken)\", LastHeartbeatTimestamp: \"2022-06-13T17:11:02.7585962Z\", LastUpdateTimestamp: \"2022-06-13T17:11:02.7585966Z\" }] }."