For some files on the Iseries computer I got this error: Unexpected error: An item with the same key has already been added. Details: Microsoft.Mashup.Evaluator.Interface.ErrorException: An item with the same key has already been added. ---> System.ArgumentException: 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 Microsoft.Internal.DictionaryTracing.AddWithTracing[K,V](IDictionary`2 dictionary, K key, V value, IEngineHost host, Boolean keyIsPii, Boolean valueIsPii) at Microsoft.Mashup.Engine1.Library.Common.DbEnvironment.RetrieveKeysForTable(String schemaName, String tableName, Keys columnNames) at Microsoft.Mashup.Engine1.Library.Common.QueryResultTableTypeValue.get_TableKeys() at Microsoft.Mashup.Engine1.Runtime.TableTypeValue.GetPrimaryKey() at Microsoft.Mashup.Engine1.Runtime.TypeValue.get_KeyColumnNames() at Microsoft.Mashup.Evaluator.ITableSourceSerializationExtensions.WriteITableSource(BinaryWriter writer, ITableSource tableSource) at Microsoft.Mashup.Evaluator.BinarySerializer.Serialize(Action`1 serializer) at Microsoft.Mashup.Evaluator.Interface.BufferedMessage.Prepare() at Microsoft.Mashup.Evaluator.ChannelMessenger.PostWithoutFlowControl(MessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.RemotePreviewValueSource.<>c__DisplayClass5.<RunStub>b__3() at Microsoft.Mashup.Evaluator.EvaluationHost.ReportExceptions(IHostTrace trace, IEngineHost engineHost, IMessageChannel channel, Action action) --- End of inner exception stack trace --- at Microsoft.Mashup.Evaluator.EvaluationHost.<>c__DisplayClass7.<TryReportException>b__6() at Microsoft.Mashup.Common.SafeExceptions.IgnoreSafeExceptions(IEngineHost host, IHostTrace trace, Action action) at Microsoft.Mashup.Evaluator.EvaluationHost.TryReportException(IHostTrace trace, IEngineHost engineHost, IMessageChannel channel, Exception exception) at Microsoft.Mashup.Evaluator.EvaluationHost.ReportExceptions(IHostTrace trace, IEngineHost engineHost, IMessageChannel channel, Action action) at Microsoft.Mashup.Evaluator.RemotePreviewValueSource.RunStub(IEngineHost engineHost, IMessageChannel channel, Func`1 getPreviewValueSource) at Microsoft.Mashup.Evaluator.RemoteDocumentEvaluator.Service.<>c__DisplayClass1e`1.<OnBeginGetResult>b__1b() at Microsoft.Mashup.Evaluator.EvaluationHost.ReportExceptions(IHostTrace trace, IEngineHost engineHost, IMessageChannel channel, Action action) at Microsoft.Mashup.Evaluator.RemoteDocumentEvaluator.Service.OnBeginGetResult[T](IMessageChannel channel, BeginGetResultMessage message, Action`1 action) at Microsoft.Mashup.Evaluator.RemoteDocumentEvaluator.Service.OnBeginGetPreviewValueSource(IMessageChannel channel, BeginGetPreviewValueSourceMessage message) at Microsoft.Mashup.Evaluator.MessageHandlers.TryDispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.ChannelMessenger.ChannelMessageHandlers.TryDispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.MessageHandlers.Dispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.ChannelMessenger.OnMessageWithUnknownChannel(IMessageChannel baseChannel, MessageWithUnknownChannel messageWithUnknownChannel) at Microsoft.Mashup.Evaluator.MessageHandlers.TryDispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.ChannelMessenger.ChannelMessageHandlers.TryDispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.MessageHandlers.Dispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.EvaluationHost.Run() at Microsoft.Mashup.Evaluator.SafeThread2.<>c__DisplayClass15.<CreateAction>b__14(Object o) at Microsoft.Mashup.Container.EvaluationContainerMain.SafeRun(String[] args) at Microsoft.Mashup.Container.EvaluationContainerMain.Main(String[] args) --- End of inner exception stack trace --- at Microsoft.Mashup.Evaluator.EvaluationHost.OnException(IEngineHost engineHost, IMessageChannel channel, ExceptionMessage message) at Microsoft.Mashup.Evaluator.MessageHandlers.TryDispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.MessageHandlers.Dispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.ChannelMessenger.ChannelMessageHandlers.TryDispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.MessageHandlers.Dispatch(IMessageChannel channel, Message message) at Microsoft.Mashup.Evaluator.Interface.IMessageChannelExtensions.WaitFor[T](IMessageChannel channel) at Microsoft.Mashup.Evaluator.RemotePreviewValueSource.PreviewValueSource.WaitFor(Func`1 condition, Boolean disposing) at Microsoft.Mashup.Evaluator.RemotePreviewValueSource.PreviewValueSource.get_TableSource() at Microsoft.Mashup.Evaluator.Interface.TracingPreviewValueSource.get_TableSource() at Microsoft.Mashup.Host.Document.Analysis.PackageDocumentAnalysisInfo.PackagePartitionAnalysisInfo.SetPreviewValue(EvaluationResult2`1 result, Func`1 getStaleSince, Func`1 getSampled)
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