Application: OPCDA_test_NET4_7_2.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentException
   at OpcLabs.EasyOpcRaw.DataAccess.RawEasyDAClient32.InternalUnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpcRaw.DataAccess.RawEasyDAClient32.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.DelegatingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Implementation.HandleMappingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Implementation.EasyDAClientCompositor.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.CompositeEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.DelegatingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Optimization.Implementation.RequestChunkingEasyDAClient.<UnsubscribeMultipleItems>b__8_1(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.BaseLib.Collections.Generic.Extensions.IEnumerableExtension.ForAll[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IEnumerable`1<System.__Canon>, System.Action`1<System.__Canon>)
   at OpcLabs.BaseLib.Collections.Generic.Extensions.IEnumerableExtension.GroupChunkProcess[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IEnumerable`1<Int32>, System.Func`2<Int32,System.__Canon>, System.Action`1<System.Collections.Generic.IEnumerable`1<Int32>>, Int32)
   at OpcLabs.BaseLib.Collections.Generic.Extensions.IEnumerableExtension.OptionalGroupChunkProcess[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Generic.IEnumerable`1<Int32>, System.Func`2<Int32,System.__Canon>, System.Action`1<System.Collections.Generic.IEnumerable`1<Int32>>, Int32)
   at OpcLabs.EasyOpc.DataAccess.Optimization.Implementation.RequestChunkingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.DelegatingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.DelegatingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Implementation.HandleMappingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Implementation.StateLockingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeMultipleItems(System.Collections.Generic.IEnumerable`1<Int32>)
   at OpcLabs.EasyOpc.DataAccess.Optimization.Implementation.SubscriptionBlendingEasyDAClient.UnsubscribeAllItems()
   at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.UnsubscribeAllItems()
   at OpcLabs.EasyOpc.DataAccess.Implementation.HandleMappingEasyDAClient.UnsubscribeAllItems()
   at OpcLabs.EasyOpc.DataAccess.Internal.DelegatingEasyDAClient.DelegatedUnsubscribeAllItemsWithHandleMapping()
   at OpcLabs.EasyOpc.DataAccess.Internal.DelegatingEasyDAClient.BackEndUnsubscribeAllItems()
   at OpcLabs.EasyOpc.DataAccess.Internal.DelegatingEasyDAClient+<>c__DisplayClass110_0.<QueueBackEndAction>b__0()
   at OpcLabs.BaseLib.Threading.Extensions.FifoExecutionExtension+<>c__DisplayClass0_0.<Queue>b__0(System.Object)
   at OpcLabs.BaseLib.Threading.WorkItem+<>c.<.cctor>b__17_0(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at OpcLabs.BaseLib.Threading.WorkItem.Execute()
   at OpcLabs.BaseLib.Threading.FifoExecution.ProcessQueuedItems(System.Object)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()