Ubuntu系统下各种报错杂烩（持续更新）
在Github时报Permanently added the RSA host key for IP address '192.30.252.128' to the list of known hosts
更新Ubuntu是出现AppStream cache update completed, but some metadata was ignored due to errors.
解决方式：
sudo rm /var/lib/dpkg/lock
在Github时报Permanently added the RSA host key for IP address '192.30.252.128' to the list of known hosts
更新Ubuntu是出现AppStream cache update completed, but some metadata was ignored due to errors.
解决方式：
sudo rm /var/lib/dpkg/lock
