Expression content.txt is undefined on line 160, column 19 in WEB-INF/t/cms/hust/default/content/新闻内容 -学生发展.html.

The problematic instruction:

----------

==> ${content.txt} [on line 160, column 17 in WEB-INF/t/cms/hust/default/content/新闻内容 -学生发展.html]

----------

Java backtrace for programmers:

----------

freemarker.core.InvalidReferenceException: Expression content.txt is undefined on line 160, column 19 in WEB-INF/t/cms/hust/default/content/新闻内容 -学生发展.html.

at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)

at freemarker.core.Expression.getStringValue(Expression.java:118)

at freemarker.core.Expression.getStringValue(Expression.java:93)

at freemarker.core.DollarVariable.accept(DollarVariable.java:76)

at freemarker.core.Environment.visit(Environment.java:210)

at freemarker.core.MixedContent.accept(MixedContent.java:92)

at freemarker.core.Environment.visit(Environment.java:210)

at freemarker.core.Environment.process(Environment.java:190)

at freemarker.template.Template.process(Template.java:237)

at com.jetsum.common.web.springmvc.SimpleFreeMarkerView.renderMergedTemplateModel(SimpleFreeMarkerView.java:114)

at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:167)

at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)

at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at com.jetsum.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:38)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)

at java.lang.Thread.run(Thread.java:619)