java.lang.IllegalArgumentException: Result Maps collection does not contain value for java.util.List

mybatis中 任何一个配置文件出错，都会报这个错误

我的出错文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.les.weixin.dao.Userdao2" >
    <select id="selectAll"  resultMap="java.util.List">
	    select * from admin_tip_msg
	</select>
</mapper>