In SharePoint 2010 whenever you try to go to list settingsyou get “An unexpectederror has occurred ” and it occurs on all the Web applications. Even if youtry to create a new web app the error persists.
Collect the ULS while reproducing the issue and if we getthe following stack:
NullReferenceException:Object reference not set to an instance of an object.]
ASP._layouts_listedit_aspx.OnLoad(EventArgse) in c:\Program Files\Common Files\Microsoft Shared\Web ServerExtensions\14\TEMPLATE\LAYOUTS\listedit.aspx:25
System.Web.UI.Page.ProcessRequestMain(BooleanincludeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2427
How does the file end up in the GAC in the first place? Seems scary that a .dll can be accidentally deployed into part of the system with so much access...
In SharePoint 2010 whenever you try to go to list settings you get “An unexpected error has occurred