When I add a new servlet, all of my servelts can no longer be found

[dkellycollins via StackOverflow]

All I am doing is adding a new servlet to the web.xml like so:

<servelt>
  <servlet-name>NewService</servlet-name>
  <servlet-class>app.server.NewServiceImpl</servlet-class>
</servelt>

<servlet-mapping>
  <servlet-name>NewService</servlet-name>
  <url-pattern>/MyApp/NewService</url-pattern>
</servlet-mapping>

However, when I add these lines and try to run my app I get a service unavailable error for one of my other servlets. I am certain the class path is right and that the class is being complied. Also I added these in between the web-app tag in the web.xml. Does anyone know why adding this servlet breaks my app?

---

Edit:

When I start my app on my computer I get this error:

WARNING: Failed startup of context com.google.appengine.tools.development.DevAppEngineWebAppContext@6a360482{/,C:\Users\Admin\MyApp\war}
java.lang.IllegalStateException: No such servlet: NewService
    at org.mortbay.jetty.servlet.ServletHandler.updateMappings(ServletHandler.java:1026)
    at org.mortbay.jetty.servlet.ServletHandler.setServletMappings(ServletHandler.java:1110)
    at org.mortbay.jetty.webapp.WebXmlConfiguration.initialize(WebXmlConfiguration.java:306)
    at org.mortbay.jetty.webapp.WebXmlConfiguration.configure(WebXmlConfiguration.java:222)
    at org.mortbay.jetty.webapp.WebXmlConfiguration.configureWebApp(WebXmlConfiguration.java:180)
    at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1247)
    at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
    at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
    at org.mortbay.jetty.Server.doStart(Server.java:224)
    at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
    at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:197)
    at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:241)
    at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:148)
    at com.google.appengine.tools.development.gwt.AppEngineLauncher.start(AppEngineLauncher.java:97)
    at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:509)
    at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1068)
    at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:811)
    at com.google.gwt.dev.DevMode.main(DevMode.java:311)

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