apt install software-properties-common后
执行add-apt-repository ppa:deadsnakes/ppa报错
Cannot add PPA: 'ppa:~deadsnakes/ubuntu/ppa'
重装CA证书后成功:
sudo apt-get install --reinstall ca-certificates
apt install software-properties-common后
执行add-apt-repository ppa:deadsnakes/ppa报错
重装CA证书后成功:
sudo apt-get install --reinstall ca-certificates