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MetaTrader 4 runtime error code

MetaTrader 4 runtime error code: ERR_FILE_BIN_STRINGSIZE (5017)

The error, as text you can copy

ERR_FILE_BIN_STRINGSIZE
Code number
5017
Kind
Runtime error code
Where you meet it
Raised inside the platform's own language
API
MetaTrader 4 (MQL4)

What does ERR_FILE_BIN_STRINGSIZE (5017) mean on the MetaTrader 4 API?

"String size must be specified for binary file" is MetaQuotes' whole description of this code. It is an MQL4 runtime error code, returned by GetLastError().

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.

Independent and unofficialdocs.mql4.comchecked

How do I fix ERR_FILE_BIN_STRINGSIZE (5017)?

Specify the string size when working with a binary file. The vendor's page gives no further remedy.