Reviewing the files from your upgrade attempt you seem to have enabled a
PPA that provides Xorg and python packages. This will prevent the
upgrade as that PPA contains packages which generate failures when
trying to calculate the upgrade. You can revert the PPA by installing
the ppa-purge package
** This bug is no longer a duplicate of bug 1874512
Can't upgrade 18.04 to 20.04
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https://bugs.launchpad.net/bugs/1874615
Title:
18.04.4 to 20.04
To manage notifications about this
*** This bug is a duplicate of bug 1874512 ***
https://bugs.launchpad.net/bugs/1874512
** This bug has been marked a duplicate of bug 1874512
Can't upgrade 18.04 to 20.04
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
