Using the E-Commerce framework's Fredhopper ECL Connector I get this error message in the CME when I open the "Fredhopper E-Commerce" mount point and browse to Categories or to Products.
Unable to get the list of items
An item with the same key has already been added.
at Tridion.ExternalContentLibrary.UI.Model.Services.GeneralImpl.GetList(String id, Int32 pageIndex, Filter filter, Int32 columns)
at Tridion.ExternalContentLibrary.UI.Model.Services.General.GetList(String id, Int32 pageIndex, Filter filter, Int32 columns)
at SyncInvokeGetList(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at Tridion.Web.UI.Core.Extensibility.DataExtenderOperationInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)
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Things I checked:
- Event Viewer: No related messages
- ECL configration: Looks allright
- Fredhopper URL: Is accessible from the CM server
- Removed all ECL stub components and the stub schema: This is most likely not related (stub components are not created when browsing though the ECL mountpoint), but it did prove that the ECL mechanism is doing something: the ECL stub schema got recreated.
