Invalid constructor code 388FA391 error when trying to use GetDialog

[amirgolshan]

I want to get a chat by its name and send message to the chat. My code is as below:

        int id = 0;
        var client = await InitializeAndAuthenticateClient();
        var chatlist = await client.GetDialogs(0, 10, 0) as MessagesDialogsConstructor;
        foreach (Chat A in chatlist.chats)
        {

            var chatreq = A as ChatConstructor;

            if (chatreq.title == "chatname")
            {
                id= chatreq.id;
                break;
            }

         }

        if(id!=0)
        {

            await client.SendChatMessage(id, "hello");

        }

but I get this error: "Invalid constructor code 388FA391 " . How can I fix this? Or any other suggestion to get the chat id? Thanks.

[steavy29]

Hi. Which line of code throws the exception?

[amirgolshan]

Hi, The full stack trace: at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader, UInt32 dataCode) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 341 at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 320 at Telegram.Net.Core.MTProto.MessageMediaVideoConstructor.Read(BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 3923 at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader, UInt32 dataCode) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 351 at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 320 at Telegram.Net.Core.MTProto.MessageForwardedConstructor.Read(BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 3779 at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader, UInt32 dataCode) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 351 at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 320 at Telegram.Net.Core.MTProto.TLObject.<>cDisplayClass13_01.<ReadVector>b__0() in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 360 at Telegram.Net.Core.MTProto.TLObject.ReadVector[T](BinaryReader reader, Func1 readNextFunc, Boolean readVectorDataCode) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 380 at Telegram.Net.Core.MTProto.TLObject.ReadVector[T](BinaryReader reader, Boolean readVectorDataCode) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 360 at Telegram.Net.Core.MTProto.MessagesDialogsSliceConstructor.Read(BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 6217 at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader, UInt32 dataCode) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 351 at Telegram.Net.Core.MTProto.TLObject.Read[T](BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\MTProto\TLObject.cs:line 320 at Telegram.Net.Core.Requests.GetDialogsRequest.OnResponse(BinaryReader reader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\Requests\GetDialogsRequest.cs:line 34 at Telegram.Net.Core.Network.MtProtoSender.HandleRpcResult(BinaryReader messageReader) in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\Network\MtProtoSender.cs:line 372 --- 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 System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at Telegram.Net.Core.Network.MtProtoSender.<Send>d__25.MoveNext() in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\Network\MtProtoSender.cs:line 187 --- 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 System.Runtime.CompilerServices.TaskAwaiter.GetResult() at Telegram.Net.Core.TelegramClient.<SendRpcRequest>d__24.MoveNext() in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\TelegramClient.cs:line 96 --- 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 System.Runtime.CompilerServices.TaskAwaiter.GetResult() at Telegram.Net.Core.TelegramClient.<GetDialogs>d__45.MoveNext() in D:\golshan\tlsharp\Telegram.Net-master\Telegram.Net-master\Telegram.Net.Core\TelegramClient.cs:line 476 --- 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 System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at Telegram.Net.Tests.Tests.d__16.MoveNext() --- 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 System.Runtime.CompilerServices.TaskAwaiter.GetResult() at advernew.Form1.d3.MoveNext()

[steavy29]

Hi. Fixed. Could you please check if it's resolved for you now?

[steavy29]

Please, create new issue if the problem still reproduces for you.