"Unable to clear out cache data"
2015-07-15 17:52:49:378 Cbi.Instrument.RequestBars (to Provider): instrument='ZN 09-15' from='07/15/2015 00:00:00' to='07/15/2015 00:00:00' period='1 Minute'
2015-07-15 17:52:49:661 ERROR: Data.Bars.ClearCache: System.IO.IOException: The process cannot access the file 'C:\Users\Greg\Documents\NinjaTrader 8\db\cache\Nymex Metals - Energy ETH.Eastern Standard Time\TICK\HG 09-15\Range_1_1_Last_Close_Tick_Minute_1.201507091800 .209912010000.Last.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)
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