After some successful upgrades from 5.61. to 6 I have run into a problem; I can no longer add pages. Just clicking on the "Add" link throws the error below.The add page dialog is never shown so I get no chance to enter a new page name.The recycle bin is empty.iFinity URL Master is installed but, as sugested, I did upgrade to the latest version before upgrading DNN. I have tried reverting to the standard provider without any success.
Error: is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException: An item with the same key has already been added. ---> System.ArgumentException: An item with the same key has already been added. at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value) at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer) at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector) at DotNetNuke.Modules.Admin.Tabs.ManageTabs.BindSkins() at DotNetNuke.Modules.Admin.Tabs.ManageTabs.BindTab() at DotNetNuke.Modules.Admin.Tabs.ManageTabs.OnLoad(EventArgs e) --- End of inner exception stack trace ---
Update: Clicking Admin > Site Settings alos throws the same error!