ubuntu 常见报错问题汇总

• Ubuntu终端出现Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

　　　　https://blog.csdn.net/moon_prince2013/article/details/48437265

• ubuntu错误：Failed to connect to raw.githubusercontent.com port 443: Connection refused

　　　　https://blog.csdn.net/morning_berry/article/details/105517538