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Added topic MQL5 Compiler Fails to Recognize Standard Functions (e.g., IsTester, PositionSelectByIndex) - MT5 Build 5051
Hello MQL5 Community, I am experiencing a persistent and very strange issue with my MetaTrader 5 (MT5) and MetaEditor installation where the compiler fails to recognize standard, built-in MQL5 functions, leading to "undeclared identifier" errors
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