Error: Arg_NullReferenceException

Details:

​Issue:

The following error appears if the View Details screen is closed before the preview finishes loading:

​[Arg_NullReferenceException]

Arguments: 

Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. Seehttp://go.microsoft.com/fwlink/?linkid=106663&Version=5.1.20513.00&File=mscorlib.dll&Key=Arg_NullReferenceException

at AvePoint.ContentManager.Gui.Xaml.Management.PageComponent.TreeComponent.PreviewTreeInited(Object sender, NodeEventArgs args)

at AvePoint.Common.Tree.TreeOperator`1.Init(List`1 nodes, Boolean hasAvailableAgent)

at AvePoint.ContentManager.Gui.Xaml.ContentManagerHome.<>c_DisplayClass2.<InitPreviewTree>b_0(Object value, WcfException e)

at AvePoint.Common.ServiceClientBase`1.ClientChannelBase.<>c_DisplayClass9.<OnAsyncCallback>b_4()​

 

Cause:

This occurs because the background properties are reset when the View Details page is manually closed before the Preview request is completed and returned.

Solution:

Do not close the View Details page before the preview finishes loading. If the issue persists, please contact AvePoint Technical Support, and refer to this KB Article ID.