HistoryBase errors

[szgy74]

In the terminal log usually several error messages appear which says for example:

2014.03.29 06:08:26.359 HistoryBase: 2 errors in 'USDJPYi1'

How is it possible to detect and repair these errors from mql4 ?

Thanks

[Ex Ovo Omnia]

It means some candles violate constraint H>=O>=L or H>=C>=L or V>=0 or T>T[-1]. You may check them only by reading values from the hst file, as the defective candle is not rendered but skipped. The file must be flushed.