I had this issue and I also managed to solve it with (I think) pure luck. I had an old LTS installed, and wanted to upgrade to 18.04. I decided to do a clean install with a live-USB. I got this error but tried anyway. The installation never finished and my system was broken. I recently tried again, but this time I chose to NOT format / and I also didn't specify to use my old /home as /home. The installation then went flawlessly and I had a working 18.04.3 installation.
However, I managed to install with a new username, not the one I had been using. This meant I had no access to my old user files. I then reinstalled again with the correct username, and again the install went flawlessly. But I could not log in, I just got sent back to the login prompt. I then installed ecryptfs-utils via tty, and log in now works and my system is fine. I'm not sure if this is helpful or related to this bug, but hopefully it is. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767799 Title: ubiquity crashed with reuse home and existing encrypted home - 'PageGtk' object has no attribute 'error_dialog' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1767799/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
