Error loading hubs in nopcommerce

I added this codes to my _AdminLayout.cshtml in nopcommerce:

    Html.AppendScriptParts("~/SignalR/hubs");
    Html.AppendScriptParts("~/Administration/Scripts/jquery.signalR-2.2.1.min.js");
    Html.AppendScriptParts("~/Administration/Scripts/jquery-3.1.1.min.js");

but after run application this error is shown:

i tried many solutions but this error did not solved.how can i solve this?