FreeMarker template error!
Expression channel is undefined on line 29, column 21 in default/data/include/infomation_left.ftl.
The problematic instruction:
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==> ${channel.id} [on line 29, column 19 in default/data/include/infomation_left.ftl]
in include "./default/data/include/infomation_left.ftl" [on line 15, column 25 in default/data/information.ftl]
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Java backtrace for programmers:
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freemarker.core.InvalidReferenceException: Expression channel is undefined on line 29, column 21 in default/data/include/infomation_left.ftl.
at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)
at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:134)
at freemarker.core.Dot._getAsTemplateModel(Dot.java:78)
at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
at freemarker.core.Expression.getStringValue(Expression.java:93)
at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.Environment.include(Environment.java:1482)
at freemarker.core.Include.accept(Include.java:169)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.Environment.process(Environment.java:189)
at freemarker.template.Template.process(Template.java:237)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:366)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:283)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:233)
at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:167)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at com.apusic.web.container.ServletComponent.service(ServletComponent.java:87)
at com.apusic.web.container.ServletFilterWrapper.doFilter(ServletFilterWrapper.java:38)
at com.apusic.web.container.FilterChainImpl.doFilter(FilterChainImpl.java:48)
at org.glassfish.tyrus.servlet.TyrusServletFilter.doFilter(TyrusServletFilter.java:290)
at com.apusic.web.container.FilterComponent.doFilter(FilterComponent.java:65)
at com.apusic.web.container.FilterChainImpl.performFilter(FilterChainImpl.java:38)
at com.apusic.web.container.FilterChainImpl.doFilter(FilterChainImpl.java:45)
at com.gx.core.filter.InjectFilter.doFilter(InjectFilter.java:34)
at com.apusic.web.container.FilterComponent.doFilter(FilterComponent.java:65)
at com.apusic.web.container.FilterChainImpl.performFilter(FilterChainImpl.java:38)
at com.apusic.web.container.FilterChainImpl.doFilter(FilterChainImpl.java:45)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at com.apusic.web.container.FilterComponent.doFilter(FilterComponent.java:65)
at com.apusic.web.container.FilterChainImpl.performFilter(FilterChainImpl.java:38)
at com.apusic.web.container.WebContainer.invoke(WebContainer.java:1115)
at com.apusic.web.container.WebContainer.doProcessRequest(WebContainer.java:905)
at com.apusic.web.container.WebContainer.processRequest(WebContainer.java:800)
at com.apusic.web.http.VirtualHost.processRequest(VirtualHost.java:369)
at com.apusic.web.http.HttpServer.processRequest(HttpServer.java:317)
at com.apusic.web.http.HttpConnectionHandler.service(HttpConnectionHandler.java:26)
at com.apusic.web.http.ConnectionHandler.processRequest(ConnectionHandler.java:303)
at com.apusic.web.http.ConnectionHandler.processConnection(ConnectionHandler.java:129)
at com.apusic.web.http.ConnectionHandler.run(ConnectionHandler.java:45)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)