tiles - org.xml.sax.SAXParseException: Attribute "controllerClass" must be declared for element type "definition" -

while starting 8.5 server publishing application, i'm getting below error:

[3/17/16 14:29:50:216 ist] 0000004c digester e org.apache.commons.digester.digester error parse error @ line 99 column 169: attribute "controllerclass" must declared element type "definition". org.xml.sax.saxparseexception: attribute "controllerclass" must declared element type "definition". @ org.apache.xerces.util.errorhandlerwrapper.createsaxparseexception(unknown source) @ org.apache.xerces.util.errorhandlerwrapper.error(unknown source) @ org.apache.xerces.impl.xmlerrorreporter.reporterror(unknown source) @ org.apache.xerces.impl.xmlerrorreporter.reporterror(unknown source) @ org.apache.xerces.impl.dtd.xmldtdvalidator.adddtddefaultattrsandvalidate(unknown source) @ org.apache.xerces.impl.dtd.xmldtdvalidator.handlestartelement(unknown source) @ org.apache.xerces.impl.dtd.xmldtdvalidator.startelement(unknown source) @ org.apache.xerces.impl.xmlnsdocumentscannerimpl.scanstartelement(unknown source) @ org.apache.xerces.impl.xmldocumentfragmentscannerimpl$fragmentcontentdispatcher.dispatch(unknown source) @ org.apache.xerces.impl.xmldocumentfragmentscannerimpl.scandocument(unknown source) @ org.apache.xerces.parsers.xml11configuration.parse(unknown source) @ org.apache.xerces.parsers.xml11configuration.parse(unknown source) @ org.apache.xerces.parsers.xmlparser.parse(unknown source) @ org.apache.xerces.parsers.abstractsaxparser.parse(unknown source) @ org.apache.xerces.jaxp.saxparserimpl$jaxpsaxparser.parse(unknown source) @ org.apache.commons.digester.digester.parse(digester.java:1765) @ org.apache.struts.tiles.xmldefinition.xmlparser.parse(xmlparser.java:281) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.parsexmlfile(i18nfactoryset.java:514) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.parsexmlfiles(i18nfactoryset.java:449) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.createdefaultfactory(i18nfactoryset.java:266) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.initfactory(i18nfactoryset.java:241) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.initfactory(i18nfactoryset.java:191) @ org.apache.struts.tiles.definition.componentdefinitionsfactorywrapper.init(componentdefinitionsfactorywrapper.java:105) @ org.apache.struts.tiles.tilesutilimpl.createdefinitionsfactory(tilesutilimpl.java:175) @ org.apache.struts.tiles.tilesutil.createdefinitionsfactory(tilesutil.java:182) @ org.apache.struts.tiles.tilesplugin.initdefinitionsfactory(tilesplugin.java:226) @ org.apache.struts.tiles.tilesplugin.init(tilesplugin.java:141) @ org.apache.struts.action.actionservlet.initmoduleplugins(actionservlet.java:871) @ org.apache.struts.action.actionservlet.init(actionservlet.java:359) @ javax.servlet.genericservlet.init(genericservlet.java:161) @ com.s1.arch.ui.action.customactionservlet.init(customactionservlet.java:242) @ com.ibm.ws.webcontainer.servlet.servletwrapper.init(servletwrapper.java:342) @ com.ibm.ws.webcontainer.servlet.servletwrapperimpl.init(servletwrapperimpl.java:168) @ com.ibm.ws.webcontainer.servlet.servletwrapper.loadonstartupcheck(servletwrapper.java:1366) @ com.ibm.ws.webcontainer.webapp.webapp.doloadonstartupactions(webapp.java:623) @ com.ibm.ws.webcontainer.webapp.webapp.commoninitializationfinally(webapp.java:589) @ com.ibm.ws.webcontainer.webapp.webappimpl.initialize(webappimpl.java:425) @ com.ibm.ws.webcontainer.webapp.webgroupimpl.addwebapplication(webgroupimpl.java:88) @ com.ibm.ws.webcontainer.virtualhostimpl.addwebapplication(virtualhostimpl.java:169) @ com.ibm.ws.webcontainer.wswebcontainer.addwebapp(wswebcontainer.java:749) @ com.ibm.ws.webcontainer.wswebcontainer.addwebapplication(wswebcontainer.java:634) @ com.ibm.ws.webcontainer.component.webcontainerimpl.install(webcontainerimpl.java:426) @ com.ibm.ws.webcontainer.component.webcontainerimpl.start(webcontainerimpl.java:718) @ com.ibm.ws.runtime.component.applicationmgrimpl.start(applicationmgrimpl.java:1177) @ com.ibm.ws.runtime.component.deployedapplicationimpl.firedeployedobjectstart(deployedapplicationimpl.java:1370) @ com.ibm.ws.runtime.component.deployedmoduleimpl.start(deployedmoduleimpl.java:639) @ com.ibm.ws.runtime.component.deployedapplicationimpl.start(deployedapplicationimpl.java:968) @ com.ibm.ws.runtime.component.applicationmgrimpl.startapplication(applicationmgrimpl.java:776) @ com.ibm.ws.runtime.component.applicationmgrimpl$5.run(applicationmgrimpl.java:2195) @ com.ibm.ws.security.auth.contextmanagerimpl.runas(contextmanagerimpl.java:5477) @ com.ibm.ws.security.auth.contextmanagerimpl.runassystem(contextmanagerimpl.java:5603) @ com.ibm.ws.security.core.securitycontext.runassystem(securitycontext.java:255) @ com.ibm.ws.runtime.component.applicationmgrimpl.start(applicationmgrimpl.java:2200) @ com.ibm.ws.runtime.component.compositionunitmgrimpl.start(compositionunitmgrimpl.java:435) @ com.ibm.ws.runtime.component.compositionunitimpl.start(compositionunitimpl.java:123) @ com.ibm.ws.runtime.component.compositionunitmgrimpl.start(compositionunitmgrimpl.java:378) @ com.ibm.ws.runtime.component.compositionunitmgrimpl.access$500(compositionunitmgrimpl.java:126) @ com.ibm.ws.runtime.component.compositionunitmgrimpl$cuinitializer.run(compositionunitmgrimpl.java:984) @ com.ibm.wsspi.runtime.component.wscomponentimpl$_asynchinitializer.run(wscomponentimpl.java:502) @ com.ibm.ws.util.threadpool$worker.run(threadpool.java:1865)

[3/17/16 14:29:50:218 ist] 0000004c digester e org.apache.commons.digester.digester error parse error @ line 108 column 171: attribute "controllerclass" must declared element type "definition". org.xml.sax.saxparseexception: attribute "controllerclass" must declared element type "definition". @ org.apache.xerces.util.errorhandlerwrapper.createsaxparseexception(unknown source) @ org.apache.xerces.util.errorhandlerwrapper.error(unknown source) @ org.apache.xerces.impl.xmlerrorreporter.reporterror(unknown source) @ org.apache.xerces.impl.xmlerrorreporter.reporterror(unknown source) @ org.apache.xerces.impl.dtd.xmldtdvalidator.adddtddefaultattrsandvalidate(unknown source) @ org.apache.xerces.impl.dtd.xmldtdvalidator.handlestartelement(unknown source) @ org.apache.xerces.impl.dtd.xmldtdvalidator.startelement(unknown source) @ org.apache.xerces.impl.xmlnsdocumentscannerimpl.scanstartelement(unknown source) @ org.apache.xerces.impl.xmldocumentfragmentscannerimpl$fragmentcontentdispatcher.dispatch(unknown source) @ org.apache.xerces.impl.xmldocumentfragmentscannerimpl.scandocument(unknown source) @ org.apache.xerces.parsers.xml11configuration.parse(unknown source) @ org.apache.xerces.parsers.xml11configuration.parse(unknown source) @ org.apache.xerces.parsers.xmlparser.parse(unknown source) @ org.apache.xerces.parsers.abstractsaxparser.parse(unknown source) @ org.apache.xerces.jaxp.saxparserimpl$jaxpsaxparser.parse(unknown source) @ org.apache.commons.digester.digester.parse(digester.java:1765) @ org.apache.struts.tiles.xmldefinition.xmlparser.parse(xmlparser.java:281) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.parsexmlfile(i18nfactoryset.java:514) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.parsexmlfiles(i18nfactoryset.java:449) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.createdefaultfactory(i18nfactoryset.java:266) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.initfactory(i18nfactoryset.java:241) @ org.apache.struts.tiles.xmldefinition.i18nfactoryset.initfactory(i18nfactoryset.java:191) @ org.apache.struts.tiles.definition.componentdefinitionsfactorywrapper.init(componentdefinitionsfactorywrapper.java:105) @ org.apache.struts.tiles.tilesutilimpl.createdefinitionsfactory(tilesutilimpl.java:175) @ org.apache.struts.tiles.tilesutil.createdefinitionsfactory(tilesutil.java:182) @ org.apache.struts.tiles.tilesplugin.initdefinitionsfactory(tilesplugin.java:226) @ org.apache.struts.tiles.tilesplugin.init(tilesplugin.java:141) @ org.apache.struts.action.actionservlet.initmoduleplugins(actionservlet.java:871) @ org.apache.struts.action.actionservlet.init(actionservlet.java:359) @ javax.servlet.genericservlet.init(genericservlet.java:161) @ com.s1.arch.ui.action.customactionservlet.init(customactionservlet.java:242) @ com.ibm.ws.webcontainer.servlet.servletwrapper.init(servletwrapper.java:342) @ com.ibm.ws.webcontainer.servlet.servletwrapperimpl.init(servletwrapperimpl.java:168) @ com.ibm.ws.webcontainer.servlet.servletwrapper.loadonstartupcheck(servletwrapper.java:1366) @ com.ibm.ws.webcontainer.webapp.webapp.doloadonstartupactions(webapp.java:623) @ com.ibm.ws.webcontainer.webapp.webapp.commoninitializationfinally(webapp.java:589) @ com.ibm.ws.webcontainer.webapp.webappimpl.initialize(webappimpl.java:425) @ com.ibm.ws.webcontainer.webapp.webgroupimpl.addwebapplication(webgroupimpl.java:88) @ com.ibm.ws.webcontainer.virtualhostimpl.addwebapplication(virtualhostimpl.java:169) @ com.ibm.ws.webcontainer.wswebcontainer.addwebapp(wswebcontainer.java:749) @ com.ibm.ws.webcontainer.wswebcontainer.addwebapplication(wswebcontainer.java:634) @ com.ibm.ws.webcontainer.component.webcontainerimpl.install(webcontainerimpl.java:426) @ com.ibm.ws.webcontainer.component.webcontainerimpl.start(webcontainerimpl.java:718) @ com.ibm.ws.runtime.component.applicationmgrimpl.start(applicationmgrimpl.java:1177) @ com.ibm.ws.runtime.component.deployedapplicationimpl.firedeployedobjectstart(deployedapplicationimpl.java:1370) @ com.ibm.ws.runtime.component.deployedmoduleimpl.start(deployedmoduleimpl.java:639) @ com.ibm.ws.runtime.component.deployedapplicationimpl.start(deployedapplicationimpl.java:968) @ com.ibm.ws.runtime.component.applicationmgrimpl.startapplication(applicationmgrimpl.java:776) @ com.ibm.ws.runtime.component.applicationmgrimpl$5.run(applicationmgrimpl.java:2195) @ com.ibm.ws.security.auth.contextmanagerimpl.runas(contextmanagerimpl.java:5477) @ com.ibm.ws.security.auth.contextmanagerimpl.runassystem(contextmanagerimpl.java:5603) @ com.ibm.ws.security.core.securitycontext.runassystem(securitycontext.java:255) @ com.ibm.ws.runtime.component.applicationmgrimpl.start(applicationmgrimpl.java:2200) @ com.ibm.ws.runtime.component.compositionunitmgrimpl.start(compositionunitmgrimpl.java:435) @ com.ibm.ws.runtime.component.compositionunitimpl.start(compositionunitimpl.java:123) @ com.ibm.ws.runtime.component.compositionunitmgrimpl.start(compositionunitmgrimpl.java:378) @ com.ibm.ws.runtime.component.compositionunitmgrimpl.access$500(compositionunitmgrimpl.java:126) @ com.ibm.ws.runtime.component.compositionunitmgrimpl$cuinitializer.run(compositionunitmgrimpl.java:984) @ com.ibm.wsspi.runtime.component.wscomponentimpl$_asynchinitializer.run(wscomponentimpl.java:502) @ com.ibm.ws.util.threadpool$worker.run(threadpool.java:1865)

could 1 please help.