MetaTrader 4 runtime error code
MetaTrader 4 runtime error code: 4021 ERR_NO_MEMORY_FOR_RETURNED_STR
The error, as text you can copy
4021 ERR_NO_MEMORY_FOR_RETURNED_STR - Kind
- Runtime error code
- Where you meet it
- Raised inside the platform's own language
What does 4021 ERR_NO_MEMORY_FOR_RETURNED_STR mean on the MetaTrader 4 API?
There is not enough memory for the temporary string returned from a function. It is an MQL4 runtime error code, returned by GetLastError().
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No fix in the source
The vendor's page gives no remedy. It lists the code with a one line description and nothing more.
That is all the source says, so this page does not invent a fix. General guidance: the other runtime error codes recorded for MetaTrader 4, and the error lookup for the exact text of the reply you received.