Upgrading Ubuntu version on Parallels Desktop

I am stuck on Unbuntu 16.04, which is a bit old. But I cannot work out how to upgrade the version I have in Parallels.

Any ideas?

 

Hello @Jon12345 Please refer to the steps from this link https://wiki.ubuntu.com/BionicBeaver/ReleaseNotes#Upgrading_from_Ubuntu_16.04_LTS_or_17.10 and see if it helps.

 

Thanks for that link. I got an error message saying package installer is broken.

 

hey, try these steps https://www.liquidweb.com/kb/how-to-upgrade-ubuntu-16-04-to-ubuntu-18-04/