Issue:



1. When we start Tomcat through services and showing in running condition but when we hit LOCALHOST:8080 through the browser, It shows the below error (See below Screenshot) 




Reason:



1. Due to another application using the 8080 port. 8080 port is the default port of Apache Tomcat. If this port is used by another application then the above error is shown in the browser.





Solution:



1. Stop Tomcat
2. Go to the conf folder of Tomcat ( C:\Program Files\Apache Software

    Foundation\Tomcat 9.0\conf )
3. Then Open the server.xml file in Notepad++
4. Then find the 8080 port in the file and replace with 8081.
5. Then start Tomcat. and check on broswer