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Members-Only Access |
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MetaTrader 4.0 Error Codes
The GetLastError() function returns the last error code. The Error code constants are defined in the stderror.mqh file.
To print text messages use the ErrorDescription() function defined in the stdlib.mqh file.
The
following table lists the Error codes returned from the
trade server.
|
Constant
|
Value
|
Description
|
|
ERR_NO_ERROR
|
0
|
No
error returned.
|
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ERR_NO_RESULT
|
1
|
No
error returned, but the result is unknown.
|
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ERR_COMMON_ERROR
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2
|
Common
error.
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ERR_INVALID_TRADE_PARAMETERS
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3
|
Invalid
trade parameters.
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ERR_SERVER_BUSY
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4
|
Trade
server is busy.
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ERR_OLD_VERSION
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5
|
Old
version of the client terminal.
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ERR_NO_CONNECTION
|
6
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No
connection with trade server.
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ERR_NOT_ENOUGH_RIGHTS
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7
|
Not
enough rights.
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ERR_TOO_FREQUENT_REQUESTS
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8
|
Too
frequent requests.
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ERR_MALFUNCTIONAL_TRADE
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9
|
Malfunctional
trade operation.
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ERR_ACCOUNT_DISABLED
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64
|
Account
disabled.
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ERR_INVALID_ACCOUNT
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65
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Invalid
account.
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ERR_TRADE_TIMEOUT
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128
|
Trade
timeout.
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ERR_INVALID_PRICE
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129
|
Invalid
price.
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ERR_INVALID_STOPS
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130
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Invalid
stops.
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ERR_INVALID_TRADE_VOLUME
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131
|
Invalid
trade volume.
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ERR_MARKET_CLOSED
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132
|
Market
is closed.
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ERR_TRADE_DISABLED
|
133
|
Trade
is disabled.
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ERR_NOT_ENOUGH_MONEY
|
134
|
Not
enough money.
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ERR_PRICE_CHANGED
|
135
|
Price
changed.
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ERR_OFF_QUOTES
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136
|
Off
quotes.
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ERR_BROKER_BUSY
|
137
|
Broker
is busy.
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ERR_REQUOTE
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138
|
Requote.
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ERR_ORDER_LOCKED
|
139
|
Order
is locked.
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ERR_LONG_POSITIONS_ONLY_ALLOWED
|
140
|
Long
positions only allowed.
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ERR_TOO_MANY_REQUESTS
|
141
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Too
many requests.
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ERR_TRADE_MODIFY_DENIED
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145
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Modification
denied because order too close to market.
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ERR_TRADE_CONTEXT_BUSY
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146
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Trade
context is busy.
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MQL4
run time error codes
|
Constant
|
Value
|
Description
|
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ERR_NO_MQLERROR
|
4000
|
No
error.
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ERR_WRONG_FUNCTION_POINTER
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4001
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Wrong
function pointer.
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ERR_ARRAY_INDEX_OUT_OF_RANGE
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4002
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Array
index is out of range.
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ERR_NO_MEMORY_FOR_FUNCTION_CALL_STACK
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4003
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No
memory for function call stack.
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ERR_RECURSIVE_STACK_OVERFLOW
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4004
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Recursive
stack overflow.
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ERR_NOT_ENOUGH_STACK_FOR_PARAMETER
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4005
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Not
enough stack for parameter.
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ERR_NO_MEMORY_FOR_PARAMETER_STRING
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4006
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No
memory for parameter string.
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ERR_NO_MEMORY_FOR_TEMP_STRING
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4007
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No
memory for temp string.
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ERR_NOT_INITIALIZED_STRING
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4008
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Not
initialized string.
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ERR_NOT_INITIALIZED_ARRAYSTRING
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4009
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Not
initialized string in array.
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ERR_NO_MEMORY_FOR_ARRAYSTRING
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4010
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No
memory for array string.
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ERR_TOO_LONG_STRING
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4011
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Too
long string.
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ERR_REMAINDER_FROM_ZERO_DIVIDE
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4012
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Remainder
from zero divide.
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ERR_ZERO_DIVIDE
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4013
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Zero
divide.
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ERR_UNKNOWN_COMMAND
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4014
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Unknown
command.
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ERR_WRONG_JUMP
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4015
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Wrong
jump (never generated error).
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ERR_NOT_INITIALIZED_ARRAY
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4016
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Not
initialized array.
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ERR_DLL_CALLS_NOT_ALLOWED
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4017
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DLL
calls are not allowed.
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ERR_CANNOT_LOAD_LIBRARY
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4018
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Cannot
load library.
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ERR_CANNOT_CALL_FUNCTION
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4019
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Cannot
call function.
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ERR_EXTERNAL_EXPERT_CALLS_NOT_ALLOWED
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4020
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Expert
function calls are not allowed.
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ERR_NOT_ENOUGH_MEMORY_FOR_RETURNED_STRING
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4021
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Not
enough memory for temp string returned from function.
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ERR_SYSTEM_BUSY
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4022
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System
is busy (never generated error).
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ERR_INVALID_FUNCTION_PARAMETERS_COUNT
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4050
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Invalid
function parameters count.
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ERR_INVALID_FUNCTION_PARAMETER_VALUE
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4051
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Invalid
function parameter value.
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ERR_STRING_FUNCTION_INTERNAL_ERROR
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4052
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String
function internal error.
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ERR_SOME_ARRAY_ERROR
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4053
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Some
array error.
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ERR_INCORRECT_SERIES_ARRAY_USING
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4054
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Incorrect
series array using.
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ERR_CUSTOM_INDICATOR_ERROR
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4055
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Custom
indicator error.
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ERR_INCOMPATIBLE_ARRAYS
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4056
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Arrays
are incompatible.
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ERR_GLOBAL_VARIABLES_PROCESSING_ERROR
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4057
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Global
variables processing error.
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ERR_GLOBAL_VARIABLE_NOT_FOUND
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4058
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Global
variable not found.
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ERR_FUNCTION_NOT_ALLOWED_IN_TESTING_MODE
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4059
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Function
is not allowed in testing mode.
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ERR_FUNCTION_NOT_CONFIRMED
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4060
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Function
is not confirmed.
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ERR_SEND_MAIL_ERROR
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4061
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Send
mail error.
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ERR_STRING_PARAMETER_EXPECTED
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4062
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String
parameter expected.
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ERR_INTEGER_PARAMETER_EXPECTED
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4063
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Integer
parameter expected.
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ERR_DOUBLE_PARAMETER_EXPECTED
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4064
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Double
parameter expected.
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ERR_ARRAY_AS_PARAMETER_EXPECTED
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4065
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Array
as parameter expected.
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ERR_HISTORY_WILL_UPDATED
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4066
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Requested
history data in updating state.
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ERR_END_OF_FILE
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4099
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End
of file.
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ERR_SOME_FILE_ERROR
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4100
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Some
file error.
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ERR_WRONG_FILE_NAME
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4101
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Wrong
file name.
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ERR_TOO_MANY_OPENED_FILES
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4102
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Too
many opened files.
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ERR_CANNOT_OPEN_FILE
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4103
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Cannot
open file.
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ERR_INCOMPATIBLE_ACCESS_TO_FILE
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4104
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Incompatible
access to a file.
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ERR_NO_ORDER_SELECTED
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4105
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No
order selected.
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ERR_UNKNOWN_SYMBOL
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4106
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Unknown
symbol.
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ERR_INVALID_PRICE_PARAM
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4107
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Invalid
price.
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ERR_INVALID_TICKET
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4108
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Invalid
ticket.
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ERR_TRADE_NOT_ALLOWED
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4109
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Trade
is not allowed.
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ERR_LONGS__NOT_ALLOWED
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4110
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Longs
are not allowed.
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ERR_SHORTS_NOT_ALLOWED
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4111
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Shorts
are not allowed.
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ERR_OBJECT_ALREADY_EXISTS
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4200
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Object
exists already.
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ERR_UNKNOWN_OBJECT_PROPERTY
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4201
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Unknown
object property.
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ERR_OBJECT_DOES_NOT_EXIST
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4202
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Object
does not exist.
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ERR_UNKNOWN_OBJECT_TYPE
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4203
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Unknown
object type.
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ERR_NO_OBJECT_NAME
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4204
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No
object name.
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ERR_OBJECT_COORDINATES_ERROR
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4205
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Object
coordinates error.
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ERR_NO_SPECIFIED_SUBWINDOW
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4206
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No
specified subwindow.
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