When I run the
do-release-upgrade command in the terminal, I receive the following error message:
Checking for a new Ubuntu release Traceback (most recent call last): File "/usr/bin/do-release-upgrade", line 164, in <module> if m.new_dist.upgrade_broken: AttributeError: 'NoneType' object has no attribute 'upgrade_broken'
I have already taken the following steps to troubleshoot the issue:
- Ensured that my package lists are up to date using
sudo apt updateand
sudo apt upgrade.
- Cleaned the package cache with
sudo apt clean.
I am currently running Zorin OS 16.2