在一级栏目获取该栏目的所有子栏目，标签报错
The following has evaluated to null or missing:
==> nd [in template "WEB-INF/t/cms/www/default/channel/news.html" at line 38, column 220]
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Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use [#if myOptionalVar??]when-present[#else]when-missing[/#if]. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
- Failed at: ${c1.name} [in template "WEB-INF/t/cms/www/default/channel/news.html" at line 38, column 218]
- Reached through: @cms_channel_list parentId=channel.id [in template "WEB-INF/t/cms/www/default/channel/news.html" at line 34, column 6]
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Java stack trace (for programmers):
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freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...]
at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134)
at freemarker.core.UnexpectedTypeException.newDesciptionBuilder(UnexpectedTypeException.java:80)
at freemarker.core.UnexpectedTypeException.<init>(UnexpectedTypeException.java:43)
at freemarker.core.NonHashException.<init>(NonHashException.java:49)
at freemarker.core.Dot._eval(Dot.java:48)
at freemarker.core.Expression.eval(Expression.java:81)
at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:96)
at freemarker.core.DollarVariable.accept(DollarVariable.java:59)
at freemarker.core.Environment.visit(Environment.java:326)
at freemarker.core.Environment.visit(Environment.java:368)
at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:263)
at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:200)
at freemarker.core.Environment.visitIteratorBlock(Environment.java:595)
at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:81)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:67)
at freemarker.core.Environment.visit(Environment.java:362)
at freemarker.core.Environment$NestedElementTemplateDirectiveBody.render(Environment.java:2727)
at com.jeecms.cms.action.directive.ChannelListDirective.execute(ChannelListDirective.java:77)
at freemarker.core.Environment.visit(Environment.java:426)
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101)
at freemarker.core.Environment.visit(Environment.java:326)
at freemarker.core.Environment.visit(Environment.java:332)
at freemarker.core.Environment.process(Environment.java:305)
at freemarker.template.Template.process(Template.java:384) |
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