MetaTrader 5 runtime error code
MetaTrader 5 runtime error code: ERR_DOUBLE_ARRAY_ONLY (5057)
The error, as text you can copy
ERR_DOUBLE_ARRAY_ONLY - Code number
- 5057
- Kind
- Runtime error code
- Where you meet it
- Raised inside the platform's own language
What does ERR_DOUBLE_ARRAY_ONLY (5057) mean on the MetaTrader 5 API?
"Must be an array of type double" is MetaQuotes' whole description of this code. It is an MQL5 runtime error code, returned by GetLastError(). The vendor lists it under the heading "Operations with Arrays".
Risk warning: CFDs and spread bets are complex instruments and come with a high risk of losing money rapidly due to leverage. You can lose money on these products, and each provider publishes its own loss figure under FCA rules. You should consider whether you understand how they work and whether you can afford to take the high risk of losing your money. Automated and API trading can amplify losses through bugs, connectivity failures and runaway orders.
How do I fix ERR_DOUBLE_ARRAY_ONLY (5057)?
Pass an array of type double to the function that failed. The vendor's page gives no further remedy.