typedef enum{

    EMErrorGeneral = 1,                      /*! \~chinese 一般錯誤 \~english General error */
    EMErrorNetworkUnavailable,               /*! \~chinese 網(wǎng)絡(luò)不可用 \~english Network is unavaliable */
    
    EMErrorInvalidAppkey = 100,              /*! \~chinese Appkey無效 \~english App key is invalid */
    EMErrorInvalidUsername,                  /*! \~chinese 用戶名無效 \~english User name is invalid */
    EMErrorInvalidPassword,                  /*! \~chinese 密碼無效 \~english Password is invalid */
    EMErrorInvalidURL,                       /*! \~chinese URL無效 \~english URL is invalid */
    
    EMErrorUserAlreadyLogin = 200,           /*! \~chinese 用戶已登錄 \~english User has already logged in */
    EMErrorUserNotLogin,                     /*! \~chinese 用戶未登錄 \~english User has not logged in */
    EMErrorUserAuthenticationFailed,         /*! \~chinese 密碼驗證失敗 \~english Password check failed */
    EMErrorUserAlreadyExist,                 /*! \~chinese 用戶已存在 \~english User has already exist */
    EMErrorUserNotFound,                     /*! \~chinese 用戶不存在 \~english User was not found */
    EMErrorUserIllegalArgument,              /*! \~chinese 參數(shù)不合法 \~english Illegal argument */
    EMErrorUserLoginOnAnotherDevice,         /*! \~chinese 當(dāng)前用戶在另一臺設(shè)備上登錄 \~english User has logged in from another device */
    EMErrorUserRemoved,                      /*! \~chinese 當(dāng)前用戶從服務(wù)器端被刪掉 \~english User was removed from server */
    EMErrorUserRegisterFailed,               /*! \~chinese 用戶注冊失敗 \~english Register user failed */
    EMErrorUpdateApnsConfigsFailed,          /*! \~chinese 更新推送設(shè)置失敗 \~english Update apns configs failed */
    EMErrorUserPermissionDenied,             /*! \~chinese 用戶沒有權(quán)限做該操作 \~english User has no right for this operation. */
    
    EMErrorServerNotReachable = 300,         /*! \~chinese 服務(wù)器未連接 \~english Server is not reachable */
    EMErrorServerTimeout,                    /*! \~chinese 服務(wù)器超時 \~english Wait server response timeout */
    EMErrorServerBusy,                       /*! \~chinese 服務(wù)器忙碌 \~english Server is busy */
    EMErrorServerUnknownError,               /*! \~chinese 未知服務(wù)器錯誤 \~english Unknown server error */
    
    EMErrorFileNotFound = 400,               /*! \~chinese 文件沒有找到 \~english Can't find the file */
    EMErrorFileInvalid,                      /*! \~chinese 文件無效 \~english File is invalid */
    EMErrorFileUploadFailed,                 /*! \~chinese 上傳文件失敗 \~english Upload file failed */
    EMErrorFileDownloadFailed,               /*! \~chinese 下載文件失敗 \~english Download file failed */
    
    EMErrorMessageInvalid = 500,             /*! \~chinese 消息無效 \~english Message is invalid */
    EMErrorMessageIncludeIllegalContent,      /*! \~chinese 消息內(nèi)容包含不合法信息 \~english Message contains illegal content */
    EMErrorMessageTrafficLimit,              /*! \~chinese 單位時間發(fā)送消息超過上限 \~english Unit time to send messages over the upper limit */
    EMErrorMessageEncryption,                /*! \~chinese 加密錯誤 \~english Encryption error */
    
    EMErrorGroupInvalidId = 600,             /*! \~chinese 群組ID無效 \~english Group Id is invalid */
    EMErrorGroupAlreadyJoined,               /*! \~chinese 已加入群組 \~english User has already joined the group */
    EMErrorGroupNotJoined,                   /*! \~chinese 未加入群組 \~english User has not joined the group */
    EMErrorGroupPermissionDenied,            /*! \~chinese 沒有權(quán)限進(jìn)行該操作 \~english User has NO authority for the operation */
    EMErrorGroupMembersFull,                 /*! \~chinese 群成員個數(shù)已達(dá)到上限 \~english Reach group's max member count */
    EMErrorGroupNotExist,                    /*! \~chinese 群組不存在 \~english Group is not exist */
    
    EMErrorChatroomInvalidId = 700,          /*! \~chinese 聊天室ID無效 \~english Chatroom id is invalid */
    EMErrorChatroomAlreadyJoined,            /*! \~chinese 已加入聊天室 \~english User has already joined the chatroom */
    EMErrorChatroomNotJoined,                /*! \~chinese 未加入聊天室 \~english User has not joined the chatroom */
    EMErrorChatroomPermissionDenied,         /*! \~chinese 沒有權(quán)限進(jìn)行該操作 \~english User has NO authority for the operation */
    EMErrorChatroomMembersFull,              /*! \~chinese 聊天室成員個數(shù)達(dá)到上限 \~english Reach chatroom's max member count */
    EMErrorChatroomNotExist,                 /*! \~chinese 聊天室不存在 \~english Chatroom is not exist */
    
    EMErrorCallInvalidId = 800,              /*! \~chinese 實時通話ID無效 \~english Call id is invalid */
    EMErrorCallBusy,                         /*! \~chinese 已經(jīng)在進(jìn)行實時通話了 \~english User is busy */
    EMErrorCallRemoteOffline,                /*! \~chinese 對方不在線 \~english Callee is offline */
    EMErrorCallConnectFailed,                /*! \~chinese 實時通話建立連接失敗 \~english Establish connection failed */

}EMErrorCode;