package chromium-browser 1:85.0.4183.83-0ubuntu2 failed to install/upgrade: 新的 chromium-browser 软件包 pre-installation 脚本 子进程返回错误状态 10

[Tom]

I cannot install chromium.

ProblemType: Package
DistroRelease: Ubuntu 20.10
Package: chromium-browser 1:85.0.4183.83-0ubuntu2
ProcVersionSignature: Ubuntu 5.8.0-1013.16-raspi 5.8.18
Uname: Linux 5.8.0-1013-raspi aarch64
ApportVersion: 2.20.11-0ubuntu50.5
AptOrdering:
 chromium-browser:arm64: Install
 NULL: ConfigurePending
Architecture: arm64
CasperMD5CheckResult: skip
Date: Fri Feb 5 22:09:05 2021
Dependencies:

ErrorMessage: 新的 chromium-browser 软件包 pre-installation 脚本 子进程返回错误状态 10
ImageMediaBuild: 20201022
Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.5ubuntu2
 apt 2.1.10ubuntu0.2
SourcePackage: chromium-browser
Title: package chromium-browser 1:85.0.4183.83-0ubuntu2 failed to install/upgrade: 新的 chromium-browser 软件包 pre-installation 脚本 子进程返回错误状态 10
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Olivier Tilloy (osomon)]

From DpkgTerminalLog.txt:

准备解压 .../chromium-browser_1%3a85.0.4183.83-0ubuntu2_arm64.deb ...
=> Installing the chromium snap
==> Checking connectivity with the snap store
Your system is unable to reach the snap store, please make sure you're
connected to the Internet and update any firewall or proxy settings as
needed so that you can reach the snap store.
You can manually check for connectivity by running "snap info chromium"
Aborting will cause the upgrade to fail and will require it to be
re-attempted once snapd is functional on the system.
Skipping will let the package upgrade continue but chromium will not be
functional until the chromium snap is installed.

What is the output of the following command?

    snap info chromium

[Launchpad Janitor (janitor)]

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