This bug was fixed in the package ubuntu-release-upgrader - 1:20.04.8
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ubuntu-release-upgrader (1:20.04.8) focal; urgency=medium
[ Jean-Baptiste Lallement ]
* Do not install a snap package if the corresponding debian package is not
installed (LP: #1856996)
* Fixed crash
** Tags removed: rls-ff-incoming
** Also affects: ubuntu-release-upgrader (Ubuntu Focal)
Importance: High
Assignee: Jean-Baptiste Lallement (jibel)
Status: Fix Committed
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** Merge proposal linked:
https://code.launchpad.net/~jibel/ubuntu-release-upgrader/+git/ubuntu-release-upgrader/+merge/376999
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: In Progress => Fix Committed
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** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/1856862
Title:
Upgrade to focal fails with AttributeError:
** Changed in: ubuntu-release-upgrader (Ubuntu)
Assignee: (unassigned) => Jean-Baptiste Lallement (jibel)
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https://bugs.launchpad.net/bugs/1856862
Title:
Upgrade to focal fails
** Summary changed:
- automated upgrade tests fail with AttributeError: 'NoneType' object has no
attribute 'section' in in DistUpgradeCache.py line 942 in
tryMarkObsoleteForRemoval
+ Upgrade to focal fails with AttributeError: 'NoneType' object has no
attribute 'section' in in
