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Error Message:
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An item with the same key has already been added.

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Call Stack:
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   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at Microsoft.AnalysisServices.Common.LinguisticModeling.SynonymModel.AddSynonymCollection(Tuple`2 measure, SynonymCollection synonyms)
   at Microsoft.AnalysisServices.Common.LinguisticModeling.LinguisticSchemaLoader.DeserializeSynonymModelFromSchema()
   at Microsoft.AnalysisServices.Common.LinguisticModeling.LinguisticDesignerState.Load(IModelerHost host, DataModelingSandbox sandbox)
   at Microsoft.AnalysisServices.Common.SandboxEditor.LoadLinguisticDesignerState()
   at Microsoft.AnalysisServices.Common.SandboxEditor.set_Sandbox(DataModelingSandbox value)
   at Microsoft.AnalysisServices.XLHost.Modeler.ClientWindow.RefreshClientWindow(String tableName)

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