润乾报表问题！！！

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润乾报表问题！！！10

在设计器里预览能够正常展示，检查授权许可也说支持，但是发布到tomcat的时候显示null，错误信息如下：
哪位遇到同样问题的麻烦指导一下，谢谢！

java.lang.RuntimeException 
     at com.runqian.report4.model.engine.SimplePager.copyCellTo(Unknown Source:2206) 
     at com.runqian.report4.model.engine.SimplePager._$1(Unknown Source:1834) 
     at com.runqian.report4.model.engine.SimplePager._$1(Unknown Source:1662) 
     at com.runqian.report4.model.engine.SimplePager._$2(Unknown Source:1485) 
     at com.runqian.report4.model.engine.SimplePager.createPages(Unknown Source:146) 
     at com.runqian.report4.usermodel.PageBuilder._$2(Unknown Source:362) 
     at com.runqian.report4.usermodel.PageBuilder._$1(Unknown Source:323) 
     at com.runqian.report4.usermodel.PageBuilder.createPages(Unknown Source:290) 
     at com.runqian.report4.cache.lllIlIllllIllIll.getPageBuilder(Unknown Source:29) 
     at com.runqian.report4.cache.lllIlIllllIllIll.getPageCount(Unknown Source:59) 
     at com.runqian.report4.tag.HtmlTag.doStartTag(Unknown Source:365) 
     at org.apache.jsp.reportJsp.showReport_jsp._jspService(showReport_jsp.java:151) 
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:95) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) 
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324) 
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) 
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) 
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) 
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237) 
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157) 
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214) 
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) 
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) 
     at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198) 
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152) 
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) 
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) 
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) 
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) 
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102) 
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) 
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
     at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104) 
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) 
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) 
     at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) 
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:802) 
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705) 
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577) 
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683) 
     at java.lang.Thread.run(Thread.java:595)