Several ports (8005, 8080, 8009) required by Tomcat v8.0 Server at localhost are.

Several ports (8005, 8080, 8009) required by Tomcat v8.0 Server at localhost are. The server may already is running in another process, or a system process may is using the port. To start this server you'll need to stop the other process or change the port number (s).

This error occurs when Eclipse runs the Web because you have already opened Tomcat on the outside through Starup.bat, while running in eclipse once again opens Tomcat through the server, which causes the above port to be occupied by the generator, The solution is to locate the Tomcat folder under the Bin folder and then double-click Shutdown.bat to close Tomcat before running in Eclipse.