2016-03-08 07:20:13:893 *************** unhandled exception trapped ***************
2016-03-08 07:20:13:893 The process cannot access the file 'C:\Users\****\Documents\NinjaTrader 8\db\day\TF 03-16\2016.Last.ncd' because it is being used by another process.
2016-03-08 07:20:13:897 System.IO.IOException: The process cannot access the file 'C:\Users\*****\Documents\NinjaTrader 8\db\day\TF 03-16\2016.Last.ncd' because it is being used by another process.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalDelete(String path, Boolean checkHost)
at NinjaTrader.Data.BarsSeries.Save()
at NinjaTrader.Cbi.Instrument.<>c__DisplayClass189_0. <RequestBars>b__1(Object o)
at System.Threading.ExecutionContext.RunInternal(Exec utionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionCon text executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.QueueUserWorkItemCallback.System. Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
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