问题 I just followed the installation guide for golang (ubuntu 16). I extracted the archive at /etc/usr I added env variable in /home/user/.profile I just tested a basic go build on the hello world code. I get the following error: The program 'go' is currently not installed. You can install it by typing: sudo apt install golang-go Why does it ask me to install it (again?)? 回答1: The location of the binary go is not in your path. Ubuntu does not find it and suggests to install it. Add this line to