host posted on April 08, 2010 19:48
If you receive the following error:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: An entry with the same key already exists. ---> System.ArgumentException: An entry with the same key already exists. at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) at System.Collections.Generic.SortedList`2.Add(TKey key, TValue value) at DotNetNuke.Entities.Modules.DesktopModuleController.GetPortalDesktopModules(Int32 portalID) at DotNetNuke.UI.ControlPanels.IconBar.BindData() at DotNetNuke.UI.ControlPanels.IconBar.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---
Cause:
This is likely due to duplicate Keys in the DeskTopModules table. In our case we had a third party Google Analytics Module installed and the newer versions of DNN 5.x include Google Analytics as part of the core. Apparently during the upgrade process DNN inserts a new record in the DeskTopModules table that uses the same FriendlyName as the existing 3rd party Google Analytics Module already in use therefore creating a conflict.
Resolution:
Open the DesktopModules table and sort by FriendlyName Ascending locate the duplicate key and give one of the duplicates key a unique name. Restart your website - found under hosting settings - and the problem should disappear.