sudo apt-get update 出錯 sudo apt-get update 出錯 Updating from such a repository can‘t be done securely, and is therefore sudo apt-get update 出錯 Updating from such a repository can‘t be done securely, and is therefore 進入到檔案儲存位置，進行處理就好了 cd /etc/apt/sources.list.d 之後再進行update，就正常了 sudo apt-get update 出錯 Updating from such a repository can‘t be done securely, and is therefore
