Hi Sebastian,

Good, question.  The app pool is running .NET CLR Version v4.0.30319, with integrated pipeline mode.

Below is the code of the method that's failing.  It makes the assumption that "NotificationsController.Instance.GetNotificationType(name);"  actually returns an object.  This is probably not a good assumption. 

At least in my database, the following query results in 0 records:  "select * From dnn_CoreMessaging_NotificationTypes where name in ('FriendRequest', 'FollowerRequest', 'FollowBackRequest', 'TranslationSubmitted')"

So, my question at this point is, should I just add the missing records?

private static void ConvertCoreNotificationTypeActionsFor700()
{
var notificationTypeNames = new[] { "FriendRequest", "FollowerRequest", "FollowBackRequest", "TranslationSubmitted" };

foreach (var name in notificationTypeNames)
{
var nt = NotificationsController.Instance.GetNotificationType(name);

var actions = NotificationsController.Instance.GetNotificationTypeActions(nt.NotificationTypeId).ToList();

if (actions.Any())
{

foreach (var action in actions)
{
action.APICall = action.APICall.Replace(".ashx", "");
NotificationsController.Instance.DeleteNotificationTypeAction(action.NotificationTypeActionId);
}

NotificationsController.Instance.SetNotificationTypeActions(actions, nt.NotificationTypeId);
}
}
}