MT4 · Compiler warnings
MT4 31 · The variable is declared but is not used anywhere | YI GOLD
Official meaning
The variable is declared but is not used anywhere
Possible causes · YI GOLD suggestions
Determine the cause from the official meaning, the triggering function and terminal logs.
Troubleshooting · YI GOLD suggestions
Review the warning line, types, initialization and return values in MetaEditor. Evaluate runtime consequences and correct the warning even when compilation succeeds.