出错的程序

出错如下:

javax.servlet.jsp.JspException: ServletException in '/jsp/gallery/AddGallery.jsp': No getter method for property tagList[0].tagVO.tagName of bean galleryForm
at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:923)
at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:462)
at jsp_servlet._tiles.__layout_left._jsp__tag3(__layout_left.java:268)
at jsp_servlet._tiles.__layout_left._jspService(__layout_left.java:131)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)
Truncated. see log file for complete stacktrace
>

FROM:
public class GalleryForm extends BaseForm{

GalleryVO galleryVO = new GalleryVO();

public GalleryVO getGalleryVO() {
return galleryVO;
}

public void setGalleryVO(GalleryVO galleryVO) {
this.galleryVO = galleryVO;
}


}

VO:

public class GalleryVO extends BaseVO{



private List  tagList = new ETArrayList(TagVO.class);
private List  picList = new ETArrayList(PicVO.class);

}

JSP:

<nested:iterate property="galleryVO.tagList" name="galleryForm">
            <nested:checkbox property="tagVO.tagName" ></nested:checkbox>
            </nested:iterate>