MT4 · Compilation errors
MT4 241 · Array required - square bracket '[' does not apply to an array, or non arrays are passed as array parameters | YI GOLD
Official meaning
Array required - square bracket '[' does not apply to an array, or non arrays are passed as array parameters
Possible causes · YI GOLD suggestions
Array size, index, type or series orientation violates function requirements.
Troubleshooting · YI GOLD suggestions
Check length, bounds, dynamic-array declarations and ArraySetAsSeries. Validate returned element counts before access.