Fail - WAR File "openmrs.war" already exists in the server

Thanks Herbet. I am having to setup the environment again. Would you kindly advice me how to go about my query here: Unable to start openmrs after deploying on tomcat

i would like to set up a fresh environment.

For the openmrs.war file, platform 2.2.0, released on 21st March 2019, size 98.4MB, what version of ubuntu server should i use? What version of java and what version of tomcat should I install?

I didn’t find this information in the release notes. Thanks.