The Trace File says:
2016-11-29 15:53:59:003 ERROR: Data.Bars.ClearCache: System.IO.IOException: The process cannot access the file 'C:\Users\aloha\Documents\NinjaTrader 8\db\cache\Default 24 x 7.W. Europe Standard Time\TICK\ES 12-16\90_3_1_Last_Close_Tick_Minute_1.201611230600.209912010000.LastSR.ntt' 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.ClearCache(Instrument instrument, DateTime firstData2Clear, Boolean clearReplayCache, Nullable`1 barsPeriodType)
Any ideas?
NT 8.0.1.0 64-bit (Standard)
Rythmic
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