I installed the Azure.Identity(Latest) and Azure.Messaging.ServiceBus(latest) because I want to connect with Service bus using ManagedIdentity.

private readonly ServiceBusSender _sender;

    private const string QUEUENAME = "test";
    public QueueService()
    {
        var client = new ServiceBusClient(ConfigurationManager.AppSettings["ServiceBusNameSpace"], new ManagedIdentityCredential(clientId: ConfigurationManager.AppSettings["ManagedIdentityClientId"], null));
        _sender = client.CreateSender(QUEUENAME);
    }

After drafting code, I’m facing issue related to loading the assembly.
FileLoadException: 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 located assembly’s manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

I tried to fix it with some steps
. Downloaded the latest version of System.Threading.Tasks.Extensions and point to the latest version.

But not able to resolve this, also unittests are failing due to dependency.