thanks ... In another .xml was a block I commented out. Now the application starts without errors. But I can't use it.
When I try to start the application from the Tomcat-web-manager I get a HTTP STATUS 404 error - description: The requested resource (/tutorial/) is not available.The same I get when I type the adress directly in the browser with http://servername:8080/tutorial or .....:8080/Tutorial 13-14/
For best results, use the Firefox browser..