The following has evaluated to null or missing:
==> Content.link  [in template "hitachi_pc/template/about_news_detail.template.html" at line 27, column 10]

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Tip: It's the step after the last dot that caused this error, not those before it.
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Tip: If the failing expression is known to 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: #if Content.link == "/about/news/comp...  [in template "hitachi_pc/template/about_news_detail.template.html" at line 27, column 5]
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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.EvalUtil.compare(EvalUtil.java:198)
	at freemarker.core.EvalUtil.compare(EvalUtil.java:115)
	at freemarker.core.ComparisonExpression.evalToBoolean(ComparisonExpression.java:78)
	at freemarker.core.IfBlock.accept(IfBlock.java:49)
	at freemarker.core.Environment.visit(Environment.java:335)
	at freemarker.core.Environment.visit(Environment.java:341)
	at freemarker.core.Environment.process(Environment.java:314)
	at com.ruoyi.common.staticize.StaticizeService.process(StaticizeService.java:78)
	at com.ruoyi.contentcore.service.impl.PublishServiceImpl.doContentStaticize(PublishServiceImpl.java:565)
	at com.ruoyi.contentcore.service.impl.PublishServiceImpl.contentStaticize(PublishServiceImpl.java:532)
	at com.ruoyi.contentcore.service.impl.PublishServiceImpl$1.run0(PublishServiceImpl.java:133)
	at com.ruoyi.common.async.AsyncTask.run(AsyncTask.java:90)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)