All of a sudden I started getting this exception when trying to access the Recording Servers from the Management Client. Xprotect Essential +. I attempted to reinstall and the error persists:
************** Exception Text **************
Exception source: VideoOS.Administration.AddIn
Exception type: System.NullReferenceException
Exception message: Object reference not set to an instance of an object.
Exception target site: Activate
at VideoOS.Administration.AddIn.UserControlDeviceInfo.Activate()
at VideoOS.Administration.AddIn.UserControlRecorder.treeRecorder_AfterSelect(Object sender, SelectEventArgs e)
at Infragistics.Win.UltraWinTree.UltraTree.OnAfterSelect(SelectEventArgs e)
at Infragistics.Win.UltraWinTree.UltraTree.FireEvent(TreeEventIds id, EventArgs e)
at Infragistics.Win.UltraWinTree.UltraTree.SelectNewSelection(SelectedNodesCollection selected, Boolean isRangeSelect, Boolean invalidate)
at Infragistics.Win.UltraWinTree.UltraTree.InternalSelectItem(ISelectableItem item, Boolean clearExistingSelection, Boolean select)
at Infragistics.Win.UltraWinTree.UltraTreeNode.set_Selected(Boolean value)
at VideoOS.Administration.Controls.TreeBase.SelectNode(String key)
at VideoOS.Administration.Controls.RecorderTree.Load(ConfigurationManager configurationManager, LoadHierarchy loadHierarchy, String[] deviceTypes, DeviceFilters deviceFilter, Boolean allowLabelEdit, Boolean doubleClickExpands)
at VideoOS.Administration.AddIn.UserControlRecorder.RefreshPlugin(Boolean forceUpdate, Guid selectRecorderId)
at VideoOS.Administration.AddIn.UserControlRecorder.Activate(NavigationItem item)
at VideoOS.Administration.FormMain.ShowAdminUserControlEventHandler(Object sender, NavigationTreeShowControlEventArgs e)
at VideoOS.Administration.NavigationTree._AfterSelect(Object sender, SelectEventArgs e)
at Infragistics.Win.UltraWinTree.UltraTree.OnAfterSelect(SelectEventArgs e)
at Infragistics.Win.UltraWinTree.UltraTree.FireEvent(TreeEventIds id, EventArgs e)
at Infragistics.Win.UltraWinTree.UltraTree.SelectNewSelection(SelectedNodesCollection selected, Boolean isRangeSelect, Boolean invalidate)
at Infragistics.Win.UltraWinTree.UltraTree.Infragistics.Win.ISelectionManager.SelectItem(ISelectableItem item, Boolean clearExistingSelection)
at Infragistics.Win.SelectionStrategySingle.OnMouseDown(ISelectableItem item, MouseMessageInfo& msginfo, Boolean forceDrag)
at Infragistics.Win.ControlUIElementBase.ProcessMouseDownHelper(Object sender, MouseEventArgs e)
at Infragistics.Win.ControlUIElementBase.ProcessMouseDown(Object sender, MouseEventArgs e)
at Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)
at Infragistics.Win.UltraWinTree.UltraTree.OnMouseDown(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** System Info **************