Position & Risk
Size exposure using equity, stop distance and actual specifications.
MT4 / MT5 Error Codes & Trading Tools
Search official trade, runtime and compilation codes and warnings. Calculate risk using actual contract specifications.
Margin & Value
Estimate margin, tick value and price-move value.
Open calculator
Compound & Drawdown
A mathematical scenario, not a forecast of strategy returns.
Open calculator
Calculations run locally in your browser. Inputs are not uploaded or saved. Terminal and broker margin rules apply; estimates exclude slippage, commission and swap.
Official error code lookup
1171 matching records
| Platform / category | Code / constant | Official meaning | Troubleshooting |
|---|---|---|---|
| MT5 · Runtime errors | 5003 ERR_TOO_LONG_FILENAME | Too long file name | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5004 ERR_CANNOT_OPEN_FILE | File opening error | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5005 ERR_FILE_CACHEBUFFER_ERROR | Not enough memory for cache to read | YI GOLD suggestionsReduce recursion and large local arrays, review allocation/release, batch history processing and check memory-operation results. MetaQuotes |
| MT5 · Runtime errors | 5006 ERR_CANNOT_DELETE_FILE | File deleting error | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5007 ERR_INVALID_FILEHANDLE | A file with this handle was closed, or was not opening at all | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5008 ERR_WRONG_FILEHANDLE | Wrong file handle | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5009 ERR_FILE_NOTTOWRITE | The file must be opened for writing | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5010 ERR_FILE_NOTTOREAD | The file must be opened for reading | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5011 ERR_FILE_NOTBIN | The file must be opened as a binary one | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5012 ERR_FILE_NOTTXT | The file must be opened as a text | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5013 ERR_FILE_NOTTXTORCSV | The file must be opened as a text or CSV | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5014 ERR_FILE_NOTCSV | The file must be opened as CSV | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5015 ERR_FILE_READERROR | File reading error | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5016 ERR_FILE_BINSTRINGSIZE | String size must be specified, because the file is opened as binary | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5017 ERR_INCOMPATIBLE_FILE | A text file must be for string arrays, for other arrays - binary | YI GOLD suggestionsCheck length, bounds, dynamic-array declarations and ArraySetAsSeries. Validate returned element counts before access. MetaQuotes |
| MT5 · Runtime errors | 5018 ERR_FILE_IS_DIRECTORY | This is not a file, this is a directory | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5019 ERR_FILE_NOT_EXIST | File does not exist | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5020 ERR_FILE_CANNOT_REWRITE | File can not be rewritten | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5021 ERR_WRONG_DIRECTORYNAME | Wrong directory name | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5022 ERR_DIRECTORY_NOT_EXIST | Directory does not exist | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5023 ERR_FILE_ISNOT_DIRECTORY | This is a file, not a directory | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5024 ERR_CANNOT_DELETE_DIRECTORY | The directory cannot be removed | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5025 ERR_CANNOT_CLEAN_DIRECTORY | Failed to clear the directory (probably one or more files are blocked and removal operation failed) | YI GOLD suggestionsSerialize account requests, verify previous outcomes, reduce frequency and use bounded backoff. MetaQuotes |
| MT5 · Runtime errors | 5026 ERR_FILE_WRITEERROR | Failed to write a resource to a file | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5027 ERR_FILE_ENDOFFILE | Unable to read the next piece of data from a CSV file (FileReadString, FileReadNumber, FileReadDatetime, FileReadBool), since the end of file is reached | YI GOLD suggestionsCheck permitted terminal sandbox paths, names, access flags, formats and handles. Record open failures without granting permissive directory access. MetaQuotes |
| MT5 · Runtime errors | 5030 ERR_NO_STRING_DATE | No date in the string | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5031 ERR_WRONG_STRING_DATE | Wrong date in the string | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5032 ERR_WRONG_STRING_TIME | Wrong time in the string | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5033 ERR_STRING_TIME_ERROR | Error converting string to date | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5034 ERR_STRING_OUT_OF_MEMORY | Not enough memory for the string | YI GOLD suggestionsReduce recursion and large local arrays, review allocation/release, batch history processing and check memory-operation results. MetaQuotes |
| MT5 · Runtime errors | 5035 ERR_STRING_SMALL_LEN | The string length is less than expected | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5036 ERR_STRING_TOO_BIGNUMBER | Too large number, more than ULONG_MAX | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5037 ERR_WRONG_FORMATSTRING | Invalid format string | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5038 ERR_TOO_MANY_FORMATTERS | Amount of format specifiers more than the parameters | YI GOLD suggestionsCompare each argument and reference mode with the official signature. Validate ranges and preserve relevant failure context. MetaQuotes |
| MT5 · Runtime errors | 5039 ERR_TOO_MANY_PARAMETERS | Amount of parameters more than the format specifiers | YI GOLD suggestionsCompare each argument and reference mode with the official signature. Validate ranges and preserve relevant failure context. MetaQuotes |
| MT5 · Runtime errors | 5040 ERR_WRONG_STRING_PARAMETER | Damaged parameter of string type | YI GOLD suggestionsCompare each argument and reference mode with the official signature. Validate ranges and preserve relevant failure context. MetaQuotes |
| MT5 · Runtime errors | 5041 ERR_STRINGPOS_OUTOFRANGE | Position outside the string | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5042 ERR_STRING_ZEROADDED | 0 added to the string end, a useless operation | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5043 ERR_STRING_UNKNOWNTYPE | Unknown data type when converting to a string | YI GOLD suggestionsInspect terminal logs and the failing function return value. Check inputs, array bounds, resources, connectivity and required permissions against the official description. MetaQuotes |
| MT5 · Runtime errors | 5044 ERR_WRONG_STRING_OBJECT | Damaged string object | YI GOLD suggestionsVerify chart ID, object existence and property types. Check creation/update results and avoid name collisions. MetaQuotes |
Official meanings and YI GOLD suggestions are presented separately. References are verified during version builds; page visits do not fetch external sites.