System.Threading.Tasks.Extensions dependency error

Hi, many thanks for the library, I’ve just installed SocketIOClient@1.0.3.12 (runtime version is v4.0.30319) via NuGet, I could build it successfully. But when I run the app, my app when crashed because of this error:

System.IO.FileNotFoundException: Could not load file or assembly 'System.Threading.Tasks.Extensions, Version=4.2.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file specified.
File name: 'System.Threading.Tasks.Extensions, Version=4.2.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
   at System.Threading.Channels.SingleConsumerUnboundedChannel`1..ctor(Boolean runContinuationsAsynchronously)
   at System.Threading.Channels.Channel.CreateUnbounded[T](UnboundedChannelOptions options)
   at Websocket.Client.WebsocketClient..ctor(Uri url, Func`3 connectionFactory)
   at SocketIOClient.SocketIO.ConnectAsync()
   at cBot.Robots.BitQSignalExecutor.<initRemoteSignal>d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()

The program try to load System.Threading.Tasks.Extensions, Version=4.2.0.0 but the installed version is System.Threading.Tasks.Extensions, Version=4.5.4, and release history has no version 4.2.0 !!

I’m using .NET 4.7.2 and add netstandard as reference.

here my code, copied from your example:

using System.Threading.Tasks.Extensions; // ==> VS IDE highlight that no Extensions in System.Threading.Tasks

   // --- here my class's function
    public async void initRemoteSignal()
    {
      const string TEST_CHANNEL = "chat_message";
      var client = new SocketIO("http://localhost:3000");
      client.ConnectTimeout = TimeSpan.FromSeconds(5);

      client.On(TEST_CHANNEL, args =>
      {
        string text = JsonConvert.DeserializeObject<string>(args.Text);
        Console.WriteLine(args.Text);
      });

      client.OnConnected += async () =>
      {
        for (int i = 0; i < 5; i++)
        {
          await client.EmitAsync(TEST_CHANNEL, i.ToString());
          await Task.Delay(1000);
        }
        await client.EmitAsync("close", "close");
      };
      client.OnClosed += Client_OnClosed;
      await client.ConnectAsync();
    }

I checked the project’s references and sawSystem.Threading.Tasks.Extensions has already been there.

I think I got library interference issue, but I’m a new to C# .net so I dont know how to resolve this issue. Any suggestion are welcome!

[doghappy]

I created a clean new project and I didn’t get any errors.

csproj

<TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>

App.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
    </startup>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Threading.Tasks.Extensions" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.2.0.1" newVersion="4.2.0.1" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

package.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net472" />
  <package id="SocketIOClient" version="1.0.3.12" targetFramework="net472" />
  <package id="System.Collections" version="4.3.0" targetFramework="net472" />
  <package id="System.Reactive" version="4.3.2" targetFramework="net472" />
  <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.2" targetFramework="net472" />
  <package id="System.Threading.Channels" version="4.7.0" targetFramework="net472" />
  <package id="System.Threading.Tasks.Extensions" version="4.5.3" targetFramework="net472" />
  <package id="System.ValueTuple" version="4.5.0" targetFramework="net472" />
  <package id="Websocket.Client" version="4.2.3" targetFramework="net472" />
</packages>

[doghappy]

This issue has been fixed in the latest version 2.0.0. If it has not been fixed, please reopen it.