Even after searching too much i couldn't find any suitable answer for my problem.
I am using Spring Tool Suite and trying to create a new server but getting error as The specified server is not valid. The .tc-runtime-instance file is missing.
So, I tried updating pivotal using Windows> Preferences and tried editing pivotal with new release but got the error as attached:
I tried changing tomcat version from 9 to 7 too but still no success. Please help.