I am new to Go, when I built my project, it returned the following the error:
/usr/local/go/bin/go run /home/qiuwei/GoWorkSpace/src/LearnGo/SoHi/Hello.go # r
Remove all the extracted files and extract the 1.6 tar again. If you are still seeing the issue, you may try restarting your Terminal as well.
sudo rm -rf /usr/local/go tar -C /usr/local -xzf go$VERSION.$OS-$ARCH.tar.gz
For more detail, see this