我运行 12.04 并在想要更新时收到以下消息：
Could not initialize the package information
An unresolvable problem occurred while initializing the package information.
Please report this bug against the 'update-manager' package and include the following error message:
'E:The package mono-runtime needs to be reinstalled, but I can't find an archive for it.'
答案1
您可以下载mono-runtime适用于 Ubuntu 12.04 的安装程序并安装它。
Ubuntu 12.04 32 位
Ctrl按+ Alt+打开终端T，然后运行以下命令：
wget https://launchpadlibrarian.net/200774235/mono-runtime_2.10.8.1-1ubuntu2.3_i386.deb
sudo dpkg -i mono-runtime*.deb
rm mono-runtime*.deb
exit
Ubuntu 12.04 64 位
Ctrl按+ Alt+打开终端T，然后运行以下命令：
wget https://launchpadlibrarian.net/200773594/mono-runtime_2.10.8.1-1ubuntu2.3_amd64.deb
sudo dpkg -i mono-runtime*.deb
rm mono-runtime*.deb
exit