MT5 · Compilation errors
MT5 263 · Do not use 'virtual' for data (members of a class or structure) | YI GOLD
Official meaning
Do not use 'virtual' for data (members of a class or structure)
Possible causes · YI GOLD suggestions
Determine the cause from the official meaning, the triggering function and terminal logs.
Troubleshooting · YI GOLD suggestions
Locate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile.