Upgrading from Qlik Sense November 2018 to 2020 failed

[veera_a]

Upgrading from Qlik Sense November 2018 to 2020 failed with error Upgrade failed. The installed patch could not be uninstalled automictically.

I encountered a issue while upgrading our Qlik Sense. Any reason why this has failed ?
I had to manually uninstall the patch and resumed installation and it worked ,but i would like know why it failed in first place so I don't encounter this in upcoming upgrades.

[Lucas_Gatling]

@veera_a  Did you install November 2020 IR first before attempting to install November 2020 patch? If so do you have a copy of the Installation logs you can share? 

[John_Sathya · Accepted solution]

Hello @veera_a ,

It's good to uninstall the patch that you have in November 2018 and try the installation again. Also, its good to try and upgrade to November 2019 before choosing a version on 2020.

Share the installation logs here for further clearifications.