Ii software-properties-gtk 0.98.9 all manage the repositories that you install software from (gtk) Ii software-properties-common 0.98.9 all manage the repositories that you install software from (common) Ii python3-software-properties 0.98.9 all manage the repositories that you install software from Ii libtss2-esys0 2.3.2-1 amd64 TPM2 Software stack library - TSS and TCTI libraries Ii libqpdf26:amd64 9.1.1-1build1 amd64 runtime library for PDF transformation/inspection software Ii libespeak-ng1:amd64 1.50+dfsg-6 amd64 Multi-lingual software speech synthesizer: shared library Ii libdv4:amd64 1.0.0-12 amd64 software library for DV format digital video (runtime lib) Ii gnome-software-plugin-snap 3.36.0-0ubuntu3 amd64 Snap support for GNOME Software Ii gnome-software-common 3.36.0-0ubuntu3 all Software Center for GNOME (common files)

Ii gnome-software 3.36.0-0ubuntu3 amd64 Software Center for GNOME Ii espeak-ng-data:amd64 1.50+dfsg-6 amd64 Multi-lingual software speech synthesizer: speech data files Ii docbook-xml 4.5-9 all standard XML documentation system for software and systems Ii brltty 6.0+dfsg-4ubuntu6 amd64 Access software for a blind person using a braille display The installed pkgs: ii appstream 0.12.10-2 amd64 Software component metadata management

This may mean that the package is missing, has been obsoleted, orĮ: Package 'software-center' has no installation candidate

Package software-center is not available, but is referred to by another package. Therefore, I tried to reinstall the Ubuntu software by referring to the following documents, but the following error occurred: Hit:1 focal-security InRelease Please refer to the following: Why don't appear categories items in Ubuntu Software? However, Ubuntu software is not working properly.

Recently, I completely erased the old disk data and installed the 20.04 LTS version of Ubuntu.

Navicat ubuntu 20.04