c#关于 ibatisnet 的 cacheModel 问题

<?xml version="1.0" encoding="utf-8" ?>
<sqlMap namespace="Account" xmlns="http://ibatis.apache.org/mapping" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
    <alias>
        <typeAlias alias="Account" type="UserObject.EntityClass.Account,UserObject" />
    </alias>    <cacheModel id="Account_cache" type ="LRU" readOnly="true" serialize="false">
        <flushInterval seconds="60"/>
        <property name="cache-size" value="1000" />
    </cacheModel>
    <resultMaps >
        <resultMap id="AccountAllResult" class="Account">            <result property="Id" column= "Id" />
            <result property="StrAccount" column= "StrAccount" />
            <result property="StrPassword" column= "StrPassword" />
            <result property="RegTime" column= "RegTime" />
            <result property="LoginTime" column= "LoginTime" />
            <result property="Email" column= "Email" />
            <result property="Type" column= "Type" />
            <result property="Sid" column= "Sid" />
            <result property="LoginIp" column= "LoginIp" />
            <result property="VipTime" column= "VipTime" />
            <result property="FreezeTime" column= "FreezeTime" />
            <result property="ChatTime" column= "ChatTime" />
            <result property="OnlineTimeNum" column= "OnlineTimeNum" />
            <result property="GoodsOnlineTimeNum" column= "GoodsOnlineTimeNum" />
            <result property="IdCard" column= "IdCard" />
            <result property="OfflineTime" column= "OfflineTime" />
            <result property="SpreadCode" column= "SpreadCode" />
            <result property="UserInviteCode" column= "UserInviteCode" />
            <result property="LeagueInviteCode" column= "LeagueInviteCode" />
            <result property="CountryInviteCode" column= "CountryInviteCode" />
            <result property="LimitChat" column= "LimitChat" />
            <result property="LimitLogin" column= "LimitLogin" />
        </resultMap>
    </resultMaps>    <statements>        <select id="SelectAllAccount" resultMap="AccountAllResult"  resultClass="Account"  cacheModel="Account_cache">
            select * from Account
        </select>
        <update id="UpdateAccount"  parameterClass="Account">
            update Account
            set
            `StrAccount` = #StrAccount#,            `StrPassword` = #StrPassword#,            `RegTime` = #RegTime#,            `LoginTime` = #LoginTime#,            `Email` = #Email#,            `Type` = #Type#,            `Sid` = #Sid#,            `LoginIp` = #LoginIp#,            `VipTime` = #VipTime#,            `FreezeTime` = #FreezeTime#,            `ChatTime` = #ChatTime#,            `OnlineTimeNum` = #OnlineTimeNum#,            `GoodsOnlineTimeNum` = #GoodsOnlineTimeNum#,            `IdCard` = #IdCard#,            `OfflineTime` = #OfflineTime#,            `SpreadCode` = #SpreadCode#,            `UserInviteCode` = #UserInviteCode#,            `LeagueInviteCode` = #LeagueInviteCode#,            `CountryInviteCode` = #CountryInviteCode#,            `LimitChat` = #LimitChat#,            `LimitLogin` = #LimitLogin#
            where `Id` = #Id#
        </update>
        <insert id="InsertAccount" parameterClass="Account">
            insert into Account
            (`StrAccount`,`StrPassword`,`RegTime`,`LoginTime`,`Email`,`Type`,`Sid`,`LoginIp`,`VipTime`,`FreezeTime`,`ChatTime`,`OnlineTimeNum`,`GoodsOnlineTimeNum`,`IdCard`,`OfflineTime`,`SpreadCode`,`UserInviteCode`,`LeagueInviteCode`,`CountryInviteCode`,`LimitChat`,`LimitLogin`)
            values
            (#StrAccount#,#StrPassword#,#RegTime#,#LoginTime#,#Email#,#Type#,#Sid#,#LoginIp#,#VipTime#,#FreezeTime#,#ChatTime#,#OnlineTimeNum#,#GoodsOnlineTimeNum#,#IdCard#,#OfflineTime#,#SpreadCode#,#UserInviteCode#,#LeagueInviteCode#,#CountryInviteCode#,#LimitChat#,#LimitLogin#)            <selectKey resultClass="int" type="post" Property="Id" >
                SELECT @@IDENTITY AS Id
            </selectKey>
        </insert>        <delete id="DeleteAccount" parameterClass="string">
            delete from  Account  where Id=#Id#
        </delete>
    </statements>
</sqlMap>
这是我配置的ibatisnet 的sqlmap的xml文件， 为什么红色字体出引用ibatis的缓存Id 一直要报错，， 有大神帮忙看下没C#