Here is the Traceback:
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeCache.py",
line 977, in tryMarkObsoleteForRemoval
self.restore_snapshot()
File "/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeCache.py",
line 354, in restore_snapshot
pkg.mark_delete()
File "/usr/lib/python3/dist-packages/apt/package.py", line 1280, in
mark_delete
SystemError: E:Error, pkgProblemResolver::Resolve generated breaks, this may be
caused by held packages.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-7o85pw_j/bionic", line 8, in <module>
sys.exit(main())
File "/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeMain.py",
line 238, in main
if app.run():
File
"/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeController.py",
line 2017, in run
return self.fullUpgrade()
File
"/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeController.py",
line 1994, in fullUpgrade
self.doPostUpgrade()
File
"/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeController.py",
line 1432, in doPostUpgrade
if not self.cache.tryMarkObsoleteForRemoval(pkgname, remove_candidates,
self.foreign_pkgs):
File "/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeCache.py",
line 241, in wrapper
res = f(*args, **kwargs)
File "/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeCache.py",
line 981, in tryMarkObsoleteForRemoval
self.restore_snapshot()
File "/tmp/ubuntu-release-upgrader-7o85pw_j/DistUpgrade/DistUpgradeCache.py",
line 354, in restore_snapshot
pkg.mark_delete()
File "/usr/lib/python3/dist-packages/apt/package.py", line 1280, in
mark_delete
SystemError: E:Error, pkgProblemResolver::Resolve generated breaks, this may be
caused by held packages.
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https://bugs.launchpad.net/bugs/1786980
Title:
ubuntu-release-upgrader crashed with SystemError: E:Error,
pkgProblemResolver::Resolve generated breaks, this may be caused by
held packages.
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