Hello,



I've been trying to upgrade from 19.4.40 to firstly 20.3, which the installer advised me I couldn't do, despite release notes telling me it was a supported upgrade.



I next tried upgrading to 20.2 at which point in the pre-install step I receive "Your installation parameters contain both a DB instance name and a port DB URL. If you are using a dynamic port, please remove the port or instance name parameter from the serverconf.xml file. Aborting installation.



Have tried searching for this error but can't find anything. I did successfully upgrade from 19.2.33 to 19.4.40 on Monday, what's changed?



Any help greatly appreciated.



Thanks



Simon