Launching tomcat v9.0 server at localhost has encountered a problem.

At times when you launch your eclipse ide and when you begin to start your tomcat server then at that instant, you might have seen these error

Usually, the error might happen because the default port number such as 8005 and 8080 might be busy

So, then what you can do?

First, double click on the “Tomcat V9.0 server at localhost[started synchronized]” link then at that instant, you might see a page like the above image

Second, change the port number values to something near to default values such as 8006 and 8081  

Third, save the page by ctrl+S

Fouth, start the tomcat server