net.sf.jasperreports.engine.design.JRValidationException: Report design not valid :1. Field not found : null2. Field not found : null3. Class not set for group expression : Bynull4. Class not set for text field expression.at net.sf.jasperreports.engine.design.JRAbstractCompiler.verifyDesign(JRAbstractCompiler.java:260)at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:144)at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:219)at net.sf.jasperreports.engine.JasperCompileManager.compileReportToFile(JasperCompileManager.java:135)at com.adventnet.servicedesk.reports.utils.CoreReportDesigner.generateSQLReport(CoreReportDesigner.java:7694)at com.adventnet.servicedesk.reports.action.ReportRequestHandler.runSQLQueryReport(ReportRequestHandler.java:1595)at com.adventnet.servicedesk.reports.action.ReportRequestHandler.handleRequest(ReportRequestHandler.java:1890)at com.adventnet.servicedesk.reports.action.CustomReportHandler.handleRequest(CustomReportHandler.java:176)at com.adventnet.servicedesk.reports.action.ReportHandler.execute(ReportHandler.java:59)at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)at com.adventnet.servicedesk.filter.EncodingFilter.doFilter(EncodingFilter.java:116)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:350)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)at com.adventnet.servicedesk.authentication.NTLMV2CredentialAssociationFilter.doFilter(NTLMV2CredentialAssociationFilter.java:34)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)at com.adventnet.servicedesk.authentication.NTLMV2Filter.doFilter(NTLMV2Filter.java:125)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)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.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:66)at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:158)at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540)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.StandardHostValve.invoke(StandardHostValve.java:137)at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)at com.adventnet.authentication.CredentialAssociation.invoke(CredentialAssociation.java:75)at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)at com.adventnet.client.util.LoginParameters.invoke(LoginParameters.java:53)at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)at com.adventnet.servicedesk.tools.AuthenticateNtlm.invoke(AuthenticateNtlm.java:203)at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:444)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:799)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(Unknown Source)