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I was about to upgrade ubuntu 18 to ubuntu 20, but it says “Your python3
install is corrupted. Please fix the '/usr/bin/python3'”, So i tried to run
sudo ln -sf /usr/bin/python2.7 /usr/bin/python as suggested in
https://askubuntu.com/questions/1185813/how-to-fix-ubuntu-19-04-cannot-upgrade-to-19-10-error-your-python3-install-is.
But i got more errors
The following packages have unmet dependencies:
gsettings-desktop-schemas : Breaks: mutter (< 3.31.4) but
3.28.4-0ubuntu18.04.2 is to be installed
libgirepository-1.0-1 : Breaks: python-gi (< 3.34.0-4~) but 3.26.1-2ubuntu1 is
to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by
held packages.
sudo ln -sf /usr/bin/python2.7 /usr/bin/python
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: mutter 3.28.4-0ubuntu18.04.2
ProcVersionSignature: Ubuntu 5.4.0-42.46~18.04.1-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.16
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 11 20:38:08 2020
InstallationDate: Installed on 2020-02-08 (184 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
SourcePackage: mutter
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gsettings-desktop-schemas (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal third-party-packages
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gsettings-desktop-schemas : Breaks: mutter (< 3.31.4) but 3.28.4-0ubuntu18.04.2
is to be installed
https://bugs.launchpad.net/bugs/1891165
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seeded packages, which is subscribed to gsettings-desktop-schemas in Ubuntu.
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