MT5 · Runtime errors
MT5 4512 · Wrong identifier of the program property | YI GOLD
ERR_MQL5_WRONG_PROPERTY
Official meaning
Wrong identifier of the program property
Possible causes · YI GOLD suggestions
Determine the cause from the official meaning, the triggering function and terminal logs.
Troubleshooting · YI GOLD suggestions
Inspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description.