MT5 · Compilation errors
MT5 407 · The type cannot be used for a resource variable | YI GOLD
Official meaning
The type cannot be used for a resource variable
Possible causes · YI GOLD suggestions
Paths, access modes, formats, handles or permissions do not meet requirements.
Troubleshooting · YI GOLD suggestions
Check permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access.