title: Start Tomcat WAR
body: <p>I have installed a Tomcat server on my PC.</p>
  
  <p>I have created a set of servlets in Eclipse and I exported in WAR format</p>
  
  <p>When I deploy to the server and give it to boot I get the following error:</p>
  
  <pre><code>FALLO - No se pudo arrancar la aplicación en trayectoria de contexto /Middleware
  FALLO - Encontrada excepción org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/Middleware]]
  </code></pre>
  
  <p>If I go to the Tomcat log file for more details see the following:</p>
  
  <pre><code>Caused by: java.lang.IllegalArgumentException: The servlets named [reunionServlet] and [servlet.ReunionServlet] are both mapped to the url-pattern [/ReunionServlet] which is not permitted
  at org.apache.catalina.deploy.WebXml.addServletMapping(WebXml.java:335)
  at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2457)
  at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2139)
  at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2100)
  at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2093)
  at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1300)
  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:5269)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
  </code></pre>
  
  <p>What is the problem?</p>
  
  <p>Do not know if the problem is with the file web.xml. Its content is as follows</p>
  
  <p><img src="https://i.stack.imgur.com/4vmgA.jpg" alt="enter image description here"></p>