MT4错误代码，首要分二部分：服务器返回的错误代码、MQL4运行的错误代码
1、服务器返回的错误代码
错误代码 | 描述 | 中文释义 |
|---|---|---|
| 0、1 | no error | 没有错误返回 |
| 2 | common error | 一般错误 |
| 3 | invalid trade parameters | 交易参数出错 |
| 4 | trade server is busy | 交易服务器繁忙 |
| 5 | old version of the client terminal | 客户终端软件版本太旧 |
| 6 | no connection with trade server | 没有连接交易服务器 |
| 7 | not enough rights | 操作权限不够 |
| 8 | too frequent requests | 交易请求过于频繁 |
| 9 | malfunctional trade operation (never returned error) | 交易操作故障 |
| 64 | account disabled | 账户被禁用 |
| 65 | invalid account | 无效账户 |
| 128 | trade timeout | 交易超时 |
| 129 | invalid price | 无效报价 |
| 130 | invalid stops | 止损错误 |
| 131 | invalid trade volume | 交易量错误 |
| 132 | market is closed | 休市 |
| 133 | trade is disabled | 禁止交易 |
| 134 | not enough money | 资金不足 |
| 135 | price changed | 报价发生更改 |
| 136 | off quotes | 建仓价过期 |
| 137 | broker is busy (never returned error) | 经纪商很忙 |
| 138 | requote | 需要从新报价 |
| 139 | order is locked | 定单被锁定 |
| 140 | long positions only allowed | 只允许做购入类型操作 |
| 141 | too many requests | 请求过多 |
| 145 | modification denied because order is too close to market | 过于靠近报价，禁止修改 |
| 146 | trade context is busy | 交易繁忙 |
| 147 | expirations are denied by broker | 交易期限被经纪商取消 |
| 148 | amount of open and pending orders has reached the limit | 持仓单数量胜过经纪商的规定 |
| 149 | hedging is prohibited | 禁止对冲 |
| 150 | prohibited by FIFO rules | FIFO禁则 |
2、MQL4运行的错误代码
错误代码 | 描述 | 中文释义 |
|---|---|---|
| 4000 | no error (never generated code) | 没有错误返回 |
| 4001 | wrong function pointer | 函数指针错误 |
| 4002 | array index is out of range | 数组越界 |
| 4003 | no memory for function call stack | 调用栈致使内存不足 |
| 4004 | recursive stack overflow | 递归栈溢出 |
| 4005 | not enough stack for parameter | 堆栈参数致使内存不足 |
| 4006 | no memory for parameter string | 字符串参数致使内存不足 |
| 4007 | no memory for temp string | 临时字符串致使内存不足 |
| 4008 | non-initialized string | 字符串变量缺少初始化赋值 |
| 4009 | non-initialized string in array | 字符串数组缺少初始化赋值 |
| 4010 | no memory for array/' string | 字符串数组空间不够 |
| 4011 | too long string | 字符串太长 |
| 4012 | remainder from zero pide | 因除数为零致使的错误 |
| 4013 | zero pide | 除数为零 |
| 4014 | unknown command | 错误的命令 |
| 4015 | wrong jump (never generated error) | 错误的跳转 |
| 4016 | non-initialized array | 数组没有初始化 |
| 4017 | dll calls are not allowed | 禁止调用DLL |
| 4018 | cannot load library | 库文件无法调用 |
| 4019 | cannot call function | 函数无法调用 |
| 4020 | expert function calls are not allowed | 禁止调用智EA函数 |
| 4021 | not enough memory for temp string returned from function | 函数中临时字符串返回致使内存不够 |
| 4022 | system is busy (never generated error) | 系统繁忙 |
| 4023 | dll-function call critical error | DLL函数调用错误 |
| 4024 | internal error | 内部错误 |
| 4025 | out of memory | 内存不够 |
| 4026 | invalid pointer | 指针错误 |
| 4027 | too many formatters in the format function | 过多的格式定义 |
| 4028 | parameters count is more than formatters count | 参数计数器越界 |
| 4029 | invalid array | 数组错误 |
| 4030 | no reply from chart | 图表没有响应 |
| 4050 | invalid function parameters count | 参数无效 |
| 4051 | invalid function parameter value | 参数值无效 |
| 4052 | string function internal error | 字符串函数内部错误 |
| 4053 | some array error | 数组错误 |
| 4054 | incorrect series array usage | 数组运用不正确 |
| 4055 | custom indicator error | 自定义指标错误 |
| 4056 | arrays are incompatible | 数组不兼容 |
| 4057 | global variables processing error | 全局变量处理错误 |
| 4058 | global variable not found | 没有发现全局变量 |
| 4059 | function is not allowed in testing mode | 试探模式中函数被禁用 |
| 4060 | function is not confirmed | 函数未证实 |
| 4061 | send mail error | 发送邮件错误 |
| 4062 | string parameter expected | String参数错误 |
| 4063 | integer parameter expected | Integer参数错误 |
| 4064 | double parameter expected | Double参数错误 |
| 4065 | array as parameter expected | 数组参数错误 |
| 4066 | requested history data is in update state | 创下历史报告错误 |
| 4067 | internal trade error | 交易内部错误 |
| 4068 | resource not found | 没有发现资源文件 |
| 4069 | resource not supported | 不支持资源文件 |
| 4070 | duplicate resource | 重复的资源文件 |
| 4071 | custom indicator cannot initialize | 自定义指标没有初始化 |
| 4099 | end of file | 文件末尾 |
| 4100 | some file error | 文件错误 |
| 4101 | wrong file name | 文件名称错误 |
| 4102 | too many opened files | 打开文件过多 |
| 4103 | cannot open file | 不能打开文件 |
| 4104 | incompatible access to a file | 不兼容的文件 |
| 4105 | no order selected | 没有选择定单 |
| 4106 | unknown symbol | 未知的商品名称 |
| 4107 | invalid price parameter for trade function | 价格无效 |
| 4108 | invalid ticket | 报价无效 |
| 4109 | trade is not allowed in the expert properties | 禁止交易，请试图修改EA属性 |
| 4110 | longs are not allowed in the expert properties | 禁止购入类型交易，请试图修改EA属性 |
| 4111 | shorts are not allowed in the expert properties | 禁止出售类型交易，请试图修改EA属性 |
| 4200 | object already exists | 对象已经存在 |
| 4201 | unknown object property | 未知的对象属性 |
| 4202 | object does not exist | 对象不存在 |
| 4203 | unknown object type | 未知的对象类型 |
| 4204 | no object name | 对象没有命名 |
| 4205 | object coordinates error | 对象坐标错误 |
| 4206 | no specified subwindow | 没有指定副图窗口 |
| 4207 | graphical object error | 图形对象错误 |
| 4210 | unknown chart property | 未知的图表属性 |
| 4211 | chart not found | 没有发现主图 |
| 4212 | chart subwindow not found | 没有发现副图 |
| 4213 | chart indicator not found | 图表中没有发现指标 |
| 4220 | symbol select error | 商品选择错误 |
| 4250 | notification error | 消息传递错误 |
| 4251 | notification parameter error | 消息参数错误 |
| 4252 | notifications disabled | 消息被禁用 |
| 4253 | notification send too frequent | 消息发送过于频繁 |
| 5001 | too many opened files | 文件打开过多 |
| 5002 | wrong file name | 错误的文件名 |
| 5003 | too long file name | 文件名过长 |
| 5004 | cannot open file | 无法打开文件 |
| 5005 | text file buffer allocation error | 文本文件缓冲区分配错误 |
| 5006 | cannot delete file | 文无法删除文件 |
| 5007 | invalid file handle (file closed or was not opened) | 文件句柄无效 |
| 5008 | wrong file handle (handle index is out of handle table) | 文件句柄错误 |
| 5009 | file must be opened with FILE_WRITE flag | 文件务必设置为FILE_WRITE |
| 5010 | file must be opened with FILE_READ flag | 文件务必设置为FILE_READ |
| 5011 | file must be opened with FILE_BIN flag | 文件务必设置为FILE_BIN |
| 5012 | file must be opened with FILE_TXT flag | 文件务必设置为FILE_TXT |
| 5013 | file must be opened with FILE_TXT or FILE_CSV flag | 文件务必设置为FILE_TXT或FILE_CSV |
| 5014 | file must be opened with FILE_CSV flag | 文件务必设置为FILE_CSV |
| 5015 | file read error | 读文件错误 |
| 5016 | file write error | 写文件错误 |
| 5017 | string size must be specified for binary file | 二进制文件务必指定字符串大小 |
| 5018 | incompatible file (for string arrays-TXT, for others-BIN) | 文件不兼容 |
| 5019 | file is directory, not file | 目录名非文件名 |
| 5020 | file does not exist | 文件不存在 |
| 5021 | file cannot be rewritten | 文件不能被重复写入 |
| 5022 | wrong directory name | 错误的目录名 |
| 5023 | directory does not exist | 目录名不存在 |
| 5024 | specified file is not directory | 指定文件并非是目录 |
| 5025 | cannot delete directory | 不能删除目录 |
| 5026 | cannot clean directory | 不能清空目录 |
| 5027 | array resize error | 更改数组大小错误 |
| 5028 | string resize error | 更改字符串大小错误 |
| 5029 | structure contains strings or dynamic arrays | 结构体包含字符串或者动态数组 |
| 其它 | unknown error | 未知错误 |