Error 4753 & PositionSelect() - MQL5
Torinex:
I often get Error 4753 although it does not seem to impact on trade operation or testing.
After some research on this forum and wider, I haven't really found any answers that applied to my problem, so I did some experimenting.
It seems to me that if PositionSelect(symbol) returns false, it ALSO generates ERROR 4753. This might be obvious to most, but to a non-programmer like me, it wasn't.
so the fix I now use is:
Perhaps there is a better way?
If not, hope this is of some value to some of you.
cheers
Jim
Hi,
Let you know the error is
ERR_TRADE_POSITION_NOT_FOUND | 4753 | Position not found |
https://www.mql5.com/en/docs/constants/errorswarnings/errorcodes
Please make sure what is content in the variable:
PositionSelect(TradingPair)
Good luck ^̮^
Documentation on MQL5: Standard Constants, Enumerations and Structures / Codes of Errors and Warnings / Runtime Errors
- www.mql5.com
Standard Constants, Enumerations and Structures / Codes of Errors and Warnings / Runtime Errors - Reference on algorithmic/automated trading language for MetaTrader 5
Yohana Parmi:
Hi,
Let you know the error is
ERR_TRADE_POSITION_NOT_FOUND | 4753 | Position not found |
https://www.mql5.com/en/docs/constants/errorswarnings/errorcodes
Please make sure what is content in the variable:
Good luck ^̮^
Hi Yohana;
Thanks for that.
Yes, I understand what the error means - so the fact that it occurs when PositionSelect() is false is perhaps not so surprising.
the variable "TradingPair" is a string that contains the Symbol in the format used by the broker.
Torinex:
Hi Yohana;
Thanks for that.
Yes, I understand what the error means - so the fact that it occurs when PositionSelect() is false is perhaps not so surprising.
the variable "TradingPair" is a string that contains the Symbol in the format used by the broker.
Hi Tor,
Maybe we can help more if you can please show us more of your code :)
So, we will understand why you use PositionSelect(), because usualy we use PositionGetTicket() or PositionSelectByTicket()
//+---------------+ //| Get positions | //+---------------+ ulong totalpos=PositionsTotal(); ulong ticket; for (ulong i=0; i<totalpos; i++) { if((ticket=PositionGetTicket(i))>0) { //--do something Print(PositionGetString(POSITION_SYMBOL),". Ticket no: ",ticket); } }
...... ResetLastError(); if(!PositionSelectByTicket(ticket)) { Print("*! Can't find open order ticket ",ticket," >>> (error: ",GetLastError(),". Desc : ",getErrorDesc(GetLastError()),")"); //--do something. } else //--ticket found. { //--do something. } ...... //+------------------------------------------------------------------+ //| returns runtime error code description | //+------------------------------------------------------------------+ string getErrorDesc(int err_code) { //--- switch(err_code) { //--- Constant Description case ERR_SUCCESS: return("The operation completed successfully"); case ERR_INTERNAL_ERROR: return("Unexpected internal error"); case ERR_WRONG_INTERNAL_PARAMETER: return("Wrong parameter in the inner call of the client terminal function"); case ERR_INVALID_PARAMETER: return("Wrong parameter when calling the system function"); case ERR_NOT_ENOUGH_MEMORY: return("Not enough memory to perform the system function"); case ERR_STRUCT_WITHOBJECTS_ORCLASS: return("The structure contains objects of strings and/or dynamic arrays and/or structure of such objects and/or classes"); case ERR_INVALID_ARRAY: return("Array of a wrong type, wrong size, or a damaged object of a dynamic array"); case ERR_ARRAY_RESIZE_ERROR: return("Not enough memory for the relocation of an array, or an attempt to change the size of a static array"); case ERR_STRING_RESIZE_ERROR: return("Not enough memory for the relocation of string"); case ERR_NOTINITIALIZED_STRING: return("Not initialized string"); case ERR_INVALID_DATETIME: return("Invalid date and/or time"); case ERR_ARRAY_BAD_SIZE: return("Requested array size exceeds 2 GB"); case ERR_INVALID_POINTER: return("Wrong pointer"); case ERR_INVALID_POINTER_TYPE: return("Wrong type of pointer"); case ERR_FUNCTION_NOT_ALLOWED: return("System function is not allowed to call"); //--- Charts case ERR_CHART_WRONG_ID: return("Wrong chart ID"); case ERR_CHART_NO_REPLY: return("Chart does not respond"); case ERR_CHART_NOT_FOUND: return("Chart not found"); case ERR_CHART_NO_EXPERT: return("No Expert Advisor in the chart that could handle the event"); case ERR_CHART_CANNOT_OPEN: return("Chart opening error"); case ERR_CHART_CANNOT_CHANGE: return("Failed to change chart symbol and period"); case ERR_CHART_CANNOT_CREATE_TIMER: return("Failed to create timer"); case ERR_CHART_WRONG_PROPERTY: return("Wrong chart property ID"); case ERR_CHART_SCREENSHOT_FAILED: return("Error creating screenshots"); case ERR_CHART_NAVIGATE_FAILED: return("Error navigating through chart"); case ERR_CHART_TEMPLATE_FAILED: return("Error applying template"); case ERR_CHART_WINDOW_NOT_FOUND: return("Subwindow containing the indicator was not found"); case ERR_CHART_INDICATOR_CANNOT_ADD: return("Error adding an indicator to chart"); case ERR_CHART_INDICATOR_CANNOT_DEL: return("Error deleting an indicator from the chart"); case ERR_CHART_INDICATOR_NOT_FOUND: return("Indicator not found on the specified chart"); //--- Graphical Objects case ERR_OBJECT_ERROR: return("Error working with a graphical object"); case ERR_OBJECT_NOT_FOUND: return("Graphical object was not found"); case ERR_OBJECT_WRONG_PROPERTY: return("Wrong ID of a graphical object property"); case ERR_OBJECT_GETDATE_FAILED: return("Unable to get date corresponding to the value"); case ERR_OBJECT_GETVALUE_FAILED: return("Unable to get value corresponding to the date"); //--- MarketInfo case ERR_MARKET_UNKNOWN_SYMBOL: return("Unknown symbol"); case ERR_MARKET_NOT_SELECTED: return("Symbol is not selected in MarketWatch"); case ERR_MARKET_WRONG_PROPERTY: return("Wrong identifier of a symbol property"); case ERR_MARKET_LASTTIME_UNKNOWN: return("Time of the last tick is not known (no ticks)"); case ERR_MARKET_SELECT_ERROR: return("Error adding or deleting a symbol in MarketWatch"); //--- History Access case ERR_HISTORY_NOT_FOUND: return("Requested history not found"); case ERR_HISTORY_WRONG_PROPERTY: return("Wrong ID of the history property"); //--- Global_Variables case ERR_GLOBALVARIABLE_NOT_FOUND: return("Global variable of the client terminal is not found"); case ERR_GLOBALVARIABLE_EXISTS: return("Global variable of the client terminal with the same name already exists"); case ERR_MAIL_SEND_FAILED: return("Email sending failed"); case ERR_PLAY_SOUND_FAILED: return("Sound playing failed"); case ERR_MQL5_WRONG_PROPERTY: return("Wrong identifier of the program property"); case ERR_TERMINAL_WRONG_PROPERTY: return("Wrong identifier of the terminal property"); case ERR_FTP_SEND_FAILED: return("File sending via ftp failed"); case ERR_NOTIFICATION_SEND_FAILED: return("Error in sending notification"); //--- Custom Indicator Buffers case ERR_BUFFERS_NO_MEMORY: return("Not enough memory for the distribution of indicator buffers"); case ERR_BUFFERS_WRONG_INDEX: return("Wrong indicator buffer index"); //--- Custom Indicator Properties case ERR_CUSTOM_WRONG_PROPERTY: return("Wrong ID of the custom indicator property"); //--- Account case ERR_ACCOUNT_WRONG_PROPERTY: return("Wrong account property ID"); case ERR_TRADE_WRONG_PROPERTY: return("Wrong trade property ID"); case ERR_TRADE_DISABLED: return("Trading by Expert Advisors prohibited"); case ERR_TRADE_POSITION_NOT_FOUND: return("Position not found"); case ERR_TRADE_ORDER_NOT_FOUND: return("Order not found"); case ERR_TRADE_DEAL_NOT_FOUND: return("Deal not found"); case ERR_TRADE_SEND_FAILED: return("Trade request sending failed"); //--- Indicators case ERR_INDICATOR_UNKNOWN_SYMBOL: return("Unknown symbol"); case ERR_INDICATOR_CANNOT_CREATE: return("Indicator cannot be created"); case ERR_INDICATOR_NO_MEMORY: return("Not enough memory to add the indicator"); case ERR_INDICATOR_CANNOT_APPLY: return("The indicator cannot be applied to another indicator"); case ERR_INDICATOR_CANNOT_ADD: return("Error applying an indicator to chart"); case ERR_INDICATOR_DATA_NOT_FOUND: return("Requested data not found"); case ERR_INDICATOR_WRONG_HANDLE: return("Wrong indicator handle"); case ERR_INDICATOR_WRONG_PARAMETERS: return("Wrong number of parameters when creating an indicator"); case ERR_INDICATOR_PARAMETERS_MISSING: return("No parameters when creating an indicator"); case ERR_INDICATOR_CUSTOM_NAME: return("The first parameter in the array must be the name of the custom indicator"); case ERR_INDICATOR_PARAMETER_TYPE: return("Invalid parameter type in the array when creating an indicator"); case ERR_INDICATOR_WRONG_INDEX: return("Wrong index of the requested indicator buffer"); //--- Depth of Market case ERR_BOOKS_CANNOT_ADD: return("Depth Of Market can not be added"); case ERR_BOOKS_CANNOT_DELETE: return("Depth Of Market can not be removed"); case ERR_BOOKS_CANNOT_GET: return("The data from Depth Of Market can not be obtained"); case ERR_BOOKS_CANNOT_SUBSCRIBE: return("Error in subscribing to receive new data from Depth Of Market"); //--- File Operations case ERR_TOO_MANY_FILES: return("More than 64 files cannot be opened at the same time"); case ERR_WRONG_FILENAME: return("Invalid file name"); case ERR_TOO_LONG_FILENAME: return("Too long file name"); case ERR_CANNOT_OPEN_FILE: return("File opening error"); case ERR_FILE_CACHEBUFFER_ERROR: return("Not enough memory for cache to read"); case ERR_CANNOT_DELETE_FILE: return("File deleting error"); case ERR_INVALID_FILEHANDLE: return("A file with this handle was closed, or was not opening at all"); case ERR_WRONG_FILEHANDLE: return("Wrong file handle"); case ERR_FILE_NOTTOWRITE: return("The file must be opened for writing"); case ERR_FILE_NOTTOREAD: return("The file must be opened for reading"); case ERR_FILE_NOTBIN: return("The file must be opened as a binary one"); case ERR_FILE_NOTTXT: return("The file must be opened as a text"); case ERR_FILE_NOTTXTORCSV: return("The file must be opened as a text or CSV"); case ERR_FILE_NOTCSV: return("The file must be opened as CSV"); case ERR_FILE_READERROR: return("File reading error"); case ERR_FILE_BINSTRINGSIZE: return("String size must be specified, because the file is opened as binary"); case ERR_INCOMPATIBLE_FILE: return("A text file must be for string arrays, for other arrays - binary"); case ERR_FILE_IS_DIRECTORY: return("This is not a file, this is a directory"); case ERR_FILE_NOT_EXIST: return("File does not exist"); case ERR_FILE_CANNOT_REWRITE: return("File can not be rewritten"); case ERR_WRONG_DIRECTORYNAME: return("Wrong directory name"); case ERR_DIRECTORY_NOT_EXIST: return("Directory does not exist"); case ERR_FILE_ISNOT_DIRECTORY: return("This is a file, not a directory"); case ERR_CANNOT_DELETE_DIRECTORY: return("The directory cannot be removed"); case ERR_CANNOT_CLEAN_DIRECTORY: return("Failed to clear the directory (probably one or more files are blocked and removal operation failed)"); case ERR_FILE_WRITEERROR: return("Failed to write a resource to a file"); //--- String Casting case ERR_NO_STRING_DATE: return("No date in the string"); case ERR_WRONG_STRING_DATE: return("Wrong date in the string"); case ERR_WRONG_STRING_TIME: return("Wrong time in the string"); case ERR_STRING_TIME_ERROR: return("Error converting string to date"); case ERR_STRING_OUT_OF_MEMORY: return("Not enough memory for the string"); case ERR_STRING_SMALL_LEN: return("The string length is less than expected"); case ERR_STRING_TOO_BIGNUMBER: return("Too large number, more than ULONG_MAX"); case ERR_WRONG_FORMATSTRING: return("Invalid format string"); case ERR_TOO_MANY_FORMATTERS: return("Amount of format specifiers more than the parameters"); case ERR_TOO_MANY_PARAMETERS: return("Amount of parameters more than the format specifiers"); case ERR_WRONG_STRING_PARAMETER: return("Damaged parameter of string type"); case ERR_STRINGPOS_OUTOFRANGE: return("Position outside the string"); case ERR_STRING_ZEROADDED: return("0 added to the string end, a useless operation"); case ERR_STRING_UNKNOWNTYPE: return("Unknown data type when converting to a string"); case ERR_WRONG_STRING_OBJECT: return("Damaged string object"); //--- Operations with Arrays case ERR_INCOMPATIBLE_ARRAYS: return("Copying incompatible arrays. String array can be copied only to a string array, and a numeric array - in numeric array only"); case ERR_SMALL_ASSERIES_ARRAY: return("The receiving array is declared as AS_SERIES, and it is of insufficient size"); case ERR_SMALL_ARRAY: return("Too small array, the starting position is outside the array"); case ERR_ZEROSIZE_ARRAY: return("An array of zero length"); case ERR_NUMBER_ARRAYS_ONLY: return("Must be a numeric array"); case ERR_ONEDIM_ARRAYS_ONLY: return("Must be a one-dimensional array"); case ERR_SERIES_ARRAY: return("Timeseries cannot be used"); case ERR_DOUBLE_ARRAY_ONLY: return("Must be an array of type double"); case ERR_FLOAT_ARRAY_ONLY: return("Must be an array of type float"); case ERR_LONG_ARRAY_ONLY: return("Must be an array of type long"); case ERR_INT_ARRAY_ONLY: return("Must be an array of type int"); case ERR_SHORT_ARRAY_ONLY: return("Must be an array of type short"); case ERR_CHAR_ARRAY_ONLY: return("Must be an array of type char"); //--- Operations with OpenCL case ERR_OPENCL_NOT_SUPPORTED: return("OpenCL functions are not supported on this computer"); case ERR_OPENCL_INTERNAL: return("Internal error occurred when running OpenCL"); case ERR_OPENCL_INVALID_HANDLE: return("Invalid OpenCL handle"); case ERR_OPENCL_CONTEXT_CREATE: return("Error creating the OpenCL context"); case ERR_OPENCL_QUEUE_CREATE: return("Failed to create a run queue in OpenCL"); case ERR_OPENCL_PROGRAM_CREATE: return("Error occurred when compiling an OpenCL program"); case ERR_OPENCL_TOO_LONG_KERNEL_NAME: return("Too long kernel name (OpenCL kernel)"); case ERR_OPENCL_KERNEL_CREATE: return("Error creating an OpenCL kernel"); case ERR_OPENCL_SET_KERNEL_PARAMETER: return("Error occurred when setting parameters for the OpenCL kernel"); case ERR_OPENCL_EXECUTE: return("OpenCL program runtime error"); case ERR_OPENCL_WRONG_BUFFER_SIZE: return("Invalid size of the OpenCL buffer"); case ERR_OPENCL_WRONG_BUFFER_OFFSET: return("Invalid offset in the OpenCL buffer"); case ERR_OPENCL_BUFFER_CREATE: return("Failed to create and OpenCL buffer"); //--- User-Defined Errors default: if(err_code>=ERR_USER_ERROR_FIRST && err_code<ERR_USER_ERROR_LAST) return("User error "+string(err_code-ERR_USER_ERROR_FIRST)); } //--- return("Unknown"); }//--eof ErrorDesc
Hope it helps.
Yo (^̮^)
Yohanna;
I have a multi-symbol EA (28 symbols) - which is why I switched to MT5 from MT4.
I am NOT running in hedge mode - so there can only ever be one position open per symbol.
I use PositionSelect(symbol) to check is a position is already open and to select that position for further work.
It seems to work fine.
Torinex:
Yohanna;
I have a multi-symbol EA (28 symbols) - which is why I switched to MT5 from MT4.
I am NOT running in hedge mode - so there can only ever be one position open per symbol.
I use PositionSelect(symbol) to check is a position is already open and to select that position for further work.
It seems to work fine.
Good luck ^̮^
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I often get Error 4753 although it does not seem to impact on trade operation or testing.
After some research on this forum and wider, I haven't really found any answers that applied to my problem, so I did some experimenting.
It seems to me that if PositionSelect(symbol) returns false, it ALSO generates ERROR 4753. This might be obvious to most, but to a non-programmer like me, it wasn't.
so the fix I now use is:
Perhaps there is a better way?
If not, hope this is of some value to some of you.
cheers
Jim