title: Exception when running Tomcat server org.apache.catalina.deploy.WebXml addServlet
body: <p>I've written a couple of servlets on my local machine using eclipse. I've tested them on my local machine and everything works perfectly fine.</p>
  
  <p>I then exported my project as a .war file and put it under the webapps directory of my tomcat in another machine to which I only have ssh access to. I restarted my tomcat server and after looking at the log files I see that it's throwing the following exception:</p>
  
  <pre><code>java.lang.NoSuchMethodException: org.apache.catalina.deploy.WebXml addServlet
  at org.apache.tomcat.util.IntrospectionUtils.callMethod1(IntrospectionUtils.java:855)
  at org.apache.tomcat.util.digester.SetNextRule.end(SetNextRule.java:201)
  at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1051)
  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:604)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1759)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2915)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:625)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:488)
  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:819)
  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:748)
  at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123)
  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1208)
  at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:525)
  at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537)
  at org.apache.catalina.startup.ContextConfig.parseWebXml(ContextConfig.java:1875)
  at org.apache.catalina.startup.ContextConfig.getDefaultWebXmlFragment(ContextConfig.java:1472)
  at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1250)
  at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878)
  at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:369)
  at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
  at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
  at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5173)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
  at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
  at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
  at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
  at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:968)
  at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1646)
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
  at java.util.concurrent.FutureTask.run(FutureTask.java:166)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
  at java.lang.Thread.run(Thread.java:679)
  </code></pre>
  
  <p>No idea what this means? </p>