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MT4 / MT5 Error Codes & Trading Tools
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Official error code lookup
1171 matching records
| Platform / category | Code / constant | Official meaning | Troubleshooting |
|---|---|---|---|
| MT5 · Compilation errors | 318 | Invalid number of parameters for a macro | YI GOLD suggestionsCompare each argument and reference mode with the official signature. Validate ranges and preserve relevant failure context. MetaQuotes |
| MT5 · Compilation errors | 319 | Too many parameters for a macro | YI GOLD suggestionsCompare each argument and reference mode with the official signature. Validate ranges and preserve relevant failure context. MetaQuotes |
| MT5 · Compilation errors | 320 | Too complex, simplify the macro | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 321 | Parameter for EnumToString() can be only an enumeration | YI GOLD suggestionsCompare each argument and reference mode with the official signature. Validate ranges and preserve relevant failure context. MetaQuotes |
| MT5 · Compilation errors | 322 | The resource name is too long | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Compilation errors | 323 | Unsupported image format (only BMP with 24 or 32 bit color depth is supported) | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 324 | An array cannot be declared in operator | YI GOLD suggestionsCheck length, bounds, dynamic-array declarations and ArraySetAsSeries. Validate returned element counts before access. MetaQuotes |
| MT5 · Compilation errors | 325 | The function can be declared only in the global scope | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 326 | The declaration is not allowed for the current scope | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 327 | Initialization of static variables with the values of local variables is not allowed | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 328 | Illegal declaration of an array of objects that do not have a default constructor | YI GOLD suggestionsCheck length, bounds, dynamic-array declarations and ArraySetAsSeries. Validate returned element counts before access. MetaQuotes |
| MT5 · Compilation errors | 329 | Initialization list allowed only for constructors | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 330 | No function definition after initialization list | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 331 | Initialization list is empty | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 332 | Array initialization in a constructor is not allowed | YI GOLD suggestionsCheck length, bounds, dynamic-array declarations and ArraySetAsSeries. Validate returned element counts before access. MetaQuotes |
| MT5 · Compilation errors | 333 | Initializing members of a parent class in the initialization list is not allowed | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 334 | Expression of the integer type expected | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 335 | Memory required for the array exceeds the maximum value | YI GOLD suggestionsCheck length, bounds, dynamic-array declarations and ArraySetAsSeries. Validate returned element counts before access. MetaQuotes |
| MT5 · Compilation errors | 336 | Memory required for the structure exceeds the maximum value | YI GOLD suggestionsReduce recursion and large local arrays, review allocation/release, batch history processing and check memory-operation results. MetaQuotes |
| MT5 · Compilation errors | 337 | Memory required for the variables declared on the global level exceeds the maximum value | YI GOLD suggestionsReduce recursion and large local arrays, review allocation/release, batch history processing and check memory-operation results. MetaQuotes |
| MT5 · Compilation errors | 338 | Memory required for local variables exceeds the maximum value | YI GOLD suggestionsReduce recursion and large local arrays, review allocation/release, batch history processing and check memory-operation results. MetaQuotes |
| MT5 · Compilation errors | 339 | Constructor not defined | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 340 | Invalid name of the icon file | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Compilation errors | 341 | Could not open the icon file at the specified path | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Compilation errors | 342 | The icon file is incorrect and is not of the ICO format | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Compilation errors | 343 | Reinitialization of a member in a class/structure constructor using the initialization list | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 344 | Initialization of static members in the constructor initialization list is not allowed | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 345 | Initialization of a non-static member of a class/structure on a global level is not allowed | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 346 | The name of the class/structure method matches the name of an earlier declared member | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 347 | The name of the class/structure member matches the name of an earlier declared method | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 348 | Virtual function cannot be declared as static | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 349 | The const modifier is not allowed for static functions | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 350 | Constructor or destructor cannot be static | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 351 | Non-static member/method of a class or a structure cannot be accessed from a static function | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 352 | An overload operation (+,-,[],++,-- etc.) is expected after the operator keyword | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 353 | Not all operations can be overloaded in MQL5 | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 354 | Definition does not match declaration | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 355 | An invalid number of parameters is specified for the operator | YI GOLD suggestionsCompare each argument and reference mode with the official signature. Validate ranges and preserve relevant failure context. MetaQuotes |
| MT5 · Compilation errors | 356 | Event handling function not found | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
| MT5 · Compilation errors | 357 | Method cannot be exported | YI GOLD suggestionsLocate the first reported line in MetaEditor. Check syntax, types, function signatures, includes and file permissions, then recompile. MetaQuotes |
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