错误提示argument type mismatch

<%@ page language="java" pageEncoding="UTF-8"%><%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="/WEB-INF/jb-common.tld" prefix="jb"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>发布信息</title>
<link rel="stylesheet" type="text/css" href="css/styles.css">
<script type="text/javascript" charset="utf-8" src="editor/kindeditor.js"></script>
<script type="text/javascript">
KE.show({id : 'content_1'});
</script>
</head> <body class="main"> <html:form action="polity" enctype="multipart/form-data" method="post">
<html:hidden property="o" value="doAdd" />
<img src="images/biao_16.jpg">&nbsp;<span class="page_title">信息发布管理&gt;公共信息&gt;发布信息</span>
<div class="button_bar">
<input type="button" value="返回" class="common_button" onclick="javascript:history.go(-1);">

<input type="submit" class="common_button" value="保存" /> </div>
<table class="query_form_table">
<tr>
<th>
标题
</th>
<td class="input_content">
<html:text property="polity.noticeTitle" size="70"/>
</td>
</tr>
<tr>
<th>
类型
</th>
<td class="input_content">
<html:file  property="polity.upfile" size="70"/>
</td>
</tr>
<tr>
<th>
类型
</th>
<td class="input_content">

<html:select property="polity.dict.dictId"> <html:optionsCollection name="DICT_信息类型" label="dictItem"
value="dictId" />
</html:select>
</td>
</tr>
<tr>
<th>
内容
<br>
</th>
<td class="input_content">
<html:textarea styleId="content_1" property="polity.noticeContent" style="width:700px;height:300px;" />
</td>
</tr>
</table>
</html:form>
</body>
</html>