Talvez sua aplicacao que usa struts esta incompativel com DTD do Struts.
faça do undeploy de todas as aplicacoes que usa Struts.
Esse mesmo projeto compila em outro computador neste meu esta dando erro ao start o tomcat:
Segue stacktrace completo:
SEVERE: Parse Fatal Error at line 1 column 7: The processing instruction target
matching “[xX][mM][lL]” is not allowed.
org.xml.sax.SAXParseException: The processing instruction target matching “[xX][
mM][lL]” is not allowed.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Un
known Source)
at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
at org.apache.xerces.impl.XMLScanner.scanPIData(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanPIData(Unkn
own Source)
at org.apache.xerces.impl.XMLScanner.scanPI(Unknown Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl$PrologDispatcher.dispat
ch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Un
known Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1548)
at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionSe
rvlet.java:708)
at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet
.java:670)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:329)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.
java:1029)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:86
2)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContex
t.java:4013)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
357)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:823)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:80
7)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDep
loyer.java:277)
at org.apache.catalina.core.StandardHost.install(StandardHost.java:832)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.j
ava:701)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432
)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:983)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:349)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478
)
at org.apache.catalina.core.StandardService.start(StandardService.java:4
80)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:231
3)
at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)
23/12/2007 13:46:16 org.apache.struts.action.ActionServlet handleConfigException
SEVERE: Parsing error processing resource path /WEB-INF/struts-config.xml
org.xml.sax.SAXParseException: The processing instruction target matching “[xX][
mM][lL]” is not allowed.
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1548)
at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionSe
rvlet.java:708)
at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet
.java:670)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:329)
at javax.servlet.GenericServlet.init(GenericServlet.java:211)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.
java:1029)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:86
2)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContex
t.java:4013)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
357)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:823)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:80
7)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDep
loyer.java:277)
at org.apache.catalina.core.StandardHost.install(StandardHost.java:832)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.j
ava:701)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:432
)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:983)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:349)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478
)
at org.apache.catalina.core.StandardService.start(StandardService.java:4
80)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:231
3)
at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)
23/12/2007 13:46:16 org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path from URL file:C:\Arquivos de p
rogramas\Apache Software Foundation\Tomcat 5.0\webapps\ROOT
23/12/2007 13:46:16 org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /servlets-examples from URL fil
e:C:\Arquivos de programas\Apache Software Foundation\Tomcat 5.0\webapps\servlet
s-examples
23/12/2007 13:46:16 org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /tomcat-docs from URL file:C:\Arquivos de programas\Apache Software Foundation\Tomcat 5.0\webapps\tomcat-docs
23/12/2007 13:46:16 org.apache.catalina.core.StandardHostDeployer install
INFO: Installing web application at context path /webdav from URL file:C:\Arquivos de programas\Apache Software Foundation\Tomcat 5.0\webapps\webdav
23/12/2007 13:46:16 org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
23/12/2007 13:46:16 org.apache.jk.common.ChannelSocket init
INFO: JK2: ajp13 listening on /0.0.0.0:8009
23/12/2007 13:46:16 org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/15 config=C:\Arquivos de programas\Apache Software
Foundation\Tomcat 5.0\conf\jk2.properties
23/12/2007 13:46:16 org.apache.catalina.startup.Catalina start
INFO: Server startup in 3750 ms