错误信息是：
E:Unable to parse package file /var/lib/apt/lists/ro.archive.ubuntu.com_ubuntu_dists_groovy-updates_In release(1),E:The package lists or status file could not be parsed or opened.
我无法更新任何内容。我打开了终端：
fane@fane-desktop:~$ apt-get
apt 2.1.10ubuntu0.2 (amd64)
Usage: apt-get [options] command
apt-get [options] install|remove pkg1 [pkg2 ...]
apt-get [options] source pkg1 [pkg2 ...]
apt-get is a command line interface for retrieval of packages
and information about them from authenticated sources and
for installation, upgrade and removal of packages together
with their dependencies.
Most used commands:
update - Retrieve new lists of packages
upgrade - Perform an upgrade
install - Install new packages (pkg is libc6 not libc6.deb)
reinstall - Reinstall packages (pkg is libc6 not libc6.deb)
remove - Remove packages
purge - Remove packages and config files
autoremove - Remove automatically all unused packages
dist-upgrade - Distribution upgrade, see apt-get(8)
dselect-upgrade - Follow dselect selections
build-dep - Configure build-dependencies for source packages
satisfy - Satisfy dependency strings
clean - Erase downloaded archive files
autoclean - Erase old downloaded archive files
check - Verify that there are no broken dependencies
source - Download source archives
download - Download the binary package into the current directory
changelog - Download and display the changelog for the given package
See apt-get(8) for more information about the available commands.
Configuration options and syntax is detailed in apt.conf(5).
Information about how to configure sources can be found in sources.list(5).
Package and version choices can be expressed via apt_preferences(5).
Security details are available in apt-secure(8).
This APT has Super Cow Powers.
fane@fane-desktop:~$ apt-get update
Reading package lists... Error!
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
E: Unable to parse package file /var/lib/apt/lists/ro.archive.ubuntu.com_ubuntu_dists_groovy-updates_InRelease (1)
E: The package lists or status file could not be parsed or opened.
答案1
您必须打开终端，然后执行以下命令来修复 APT：
sudo rm -v /var/lib/dpkg/lock* /var/cache/apt/archives/lock
sudo rm -vrf /var/lib/apt/lists/*
然后使用常规更新命令更新软件包列表：
sudo apt-get update
最后使用以下命令安装升级的软件包版本：
sudo apt-get upgrade
另请注意，以上所有命令均用于sudo获取根权限来运行系统维护任务。您无法使用普通用户权限来运行此类任务。