容器内libGL.so.1问题
sudo apt update sudo apt install libgl1-mesa-glx
importError: libgthread-2.0.so.0: cannot open shared object file: No such file or directory
apt-get install libglib2.0-dev
可能会遇到下面的问题：
E: The repository 'https://mirrors.tuna.tsinghua.edu.cn/ubuntu focal Release' does not have a Release file.
或者
E: Unable to locate package libgl1-mesa-glx
这两个个报错是清华源的问题，换用阿里云的就没有了，用vim打开/etc/apt/sources.list这个文件，把里面的东西都删掉，复制阿里云源进去，保存就好了，后边的安装就正常。
#添加阿里源 deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
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