Server won't start: invalid ports [Tomcat in Eclipse]"

Programming
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1

I’m experiencing an issue when trying to open the list-student.jsp file in Tomcat v9.0 Server. I receive the following error message:

Starting Tomcat v9.0 Server at localhost has encountered a problem. The server cannot be started because one or more of the ports are invalid. Open the server editor and correct invalid ports.

I have attempted to change the port number from 8080 to 8181, as I have done successfully in the past, however the issue still persists.

Changing port number

2

The issue is that the Tomcat v9.0 Server cannot be started because one or more of the ports are invalid. To resolve this issue, open the server editor and correct invalid ports. Additionally, make sure that the port number has been changed successfully from 8080 to 8181.