FreeMarker template error (HTML_DEBUG mode; use RETHROW in production!)

Template inclusion failed (for parameter value "template/ustb/common/xs_left.html"):
Template not found for name "template/ustb/common/xs_left.html".
The name was interpreted by this TemplateLoader: org.apache.struts2.views.freemarker.FreemarkerThemeTemplateLoader@536dd03.

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FTL stack trace ("~" means nesting-related):
	- Failed at: #include "template/\${siteVO.dir}/com...  [in template "template/ustb/content/show_zybk.html" at line 18, column 41]
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Java stack trace (for programmers):
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freemarker.core._MiscTemplateException: [... Exception message was already printed; see it above ...]
	at freemarker.core.Include.accept(Include.java:159)
	at freemarker.core.Environment.visit(Environment.java:312)
	at freemarker.core.MixedContent.accept(MixedContent.java:62)
	at freemarker.core.Environment.visit(Environment.java:312)
	at freemarker.core.Environment.process(Environment.java:290)
	at freemarker.template.Template.process(Template.java:312)
	at org.apache.struts2.views.freemarker.FreemarkerResult.doExecute(FreemarkerResult.java:223)
	at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:191)
	at org.apache.struts2.rest.RestActionInvocation.executeResult(RestActionInvocation.java:240)
	at org.apache.struts2.rest.RestActionInvocation.processResult(RestActionInvocation.java:197)
	at org.apache.struts2.rest.RestActionInvocation.invoke(RestActionInvocation.java:145)
	at com.opensymphony.xwork2.DefaultActionProxy.execute(DefaultActionProxy.java:147)
	at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:575)
	at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)
	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at cn.rzcx.mobicms.framework.filter.DebugFilter.doFilter(DebugFilter.java:118)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:958)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452)
	at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: freemarker.template.TemplateNotFoundException: Template not found for name "template/ustb/common/xs_left.html".
The name was interpreted by this TemplateLoader: org.apache.struts2.views.freemarker.FreemarkerThemeTemplateLoader@536dd03.
	at freemarker.template.Configuration.getTemplate(Configuration.java:1584)
	at freemarker.core.Environment.getTemplateForInclusion(Environment.java:2046)
	at freemarker.core.Include.accept(Include.java:157)
	... 34 more