Backtesting error

The title of the EA ends with .mq5 and its saved as a MQL5 source file. And the encoding is ANSI. Is this correct?

pls compile it using metaeditor

Ive already complied the include file and EA

Show the log entries of the error.

Here it is

In the Navigator this is a O (letter o in uppercase).

In the Journal this is a 0 (number zero).

Good spot thanks! Ive renamed the EA yet the same error appears!

Please also show the "Settings" tab so we can see exactly what you can doing.

Also, can you please provide the full path of the data folder?
Does it perhaps have non-standard characters in the path name?
Or is perhaps longer or close to the 260 character limit (normally imposed by Windows unless specifically disabled manually)?

One more thing, since the Expert name selected in the tester settings is click-selectable and not manually input into the field, I find it strange for it to be misstating the "0" and "O".

Either you have both files, and it is getting confused, in which case you should clean it up ... or you are also referencing the file from within the EA itself.