imperative.cs

try
{
    var res = await _connectedTCS.Task;
    if (res.Result)
    {
        var res2 = await _userStatusTCS.Task;
        if (res2.Result)
        {
            var res3 = await _profileTCS.Task;
            if (res3.Result)
            {
                //success
                Log.Info("Connecting to the Gateway successful");
                connectedSuccessfully = true;
                RootNode = _profileTCS.Task.Result.Value;
            }
            else
            {
                Log.Error("Error when connecting to the Gateway " + res3.Error);
                connectedEvent.Set();
            }
        }
        else
        {
            Log.Error("Error when connecting to the Gateway " + res2.Error);
            connectedEvent.Set();
        }
    }
    else
    {
        Log.Error("Error when connecting to the Gateway " + res1.Error);
        connectedEvent.Set();
    }
}
catch (AggregateException ex) when (ex.InnerExceptions.Any(e => e is TaskCanceledException))
{
    Log.Error("Error when connecting to the Gateway " + "Task cancelled");
    connectedEvent.Set();
}