fixes the chat

Yavsc/Views/Home/Chat.cshtml

@@ -7,12 +7,14 @@
     <input type="button" id="sendmessage" value="Send" />
     
     <input type="hidden" id="displayname" />
+    @if (ViewBag.Contacts!=null) {
 <select id="to" >
+    
     @foreach (var contact in ViewBag.Contacts) {
         <option>@contact.UserName</option>
     }
 </select>
-
+}
     <ul id="discussion">
     </ul>
     <ul id="private">
@@ -22,7 +24,7 @@
     <!--Script references. -->
     <!--The jQuery library is required and is referenced by default in _Layout.cshtml. -->
     <!--Reference the SignalR library. -->
-    <script src="~/js/jquery.signalR-2.2.0.js"></script>
+    <script src="~/js/jquery.signalR-2.2.1.min.js"></script>
     <!--Reference the autogenerated SignalR hub script. -->
     <script src="~/signalr/hubs"></script>
     <!--SignalR script to update the chat page and send messages.-->