package chromium-browser (not installed) failed to install/upgrade: o subprocesso do pacote chromium-browser, novo script pre-installation retornou erro do status de saída 1

[Evaldo Junior]

The software Chromium is not install or reinstall for the apt command, the repository is correct.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: chromium-browser (not installed)
ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73
Uname: Linux 5.4.0-56-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.13
AptOrdering:
 chromium-browser:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Tue Dec 8 00:55:24 2020
ErrorMessage: o subprocesso do pacote chromium-browser, novo script pre-installation retornou erro do status de saída 1
InstallationDate: Installed on 2020-12-05 (2 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: chromium-browser
Title: package chromium-browser (not installed) failed to install/upgrade: o subprocesso do pacote chromium-browser, novo script pre-installation retornou erro do status de saída 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Olivier Tilloy (osomon)]

Relevant error message from DpkgTerminalLog.txt:

error: system does not fully support snapd: cannot mount squashfs image using "squashfs": exec:
       "mount": executable file not found in $PATH

A similar problem is discussed at https://askubuntu.com/questions/1143436/snap-not-working.

What is the output of the following command executed in a terminal: "mount" ?

[Launchpad Janitor (janitor)]

[Expired for chromium-browser (Ubuntu) because there has been no activity for 60 days.]