我设法在Ubuntu上下载并安装Go。但是，由于我的GOPATH和GOROOT定义不正确，我目前无法正确设置protoc-gen-go。这是我的GOROOT和GOPATH的样子：
export GOROOT=/usr/local/go
export PATH=$PATH:$GOROOT/bin
export GOPATH=$HOME/go
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOROOT:$GOPATH:$GOBIN
export PATH="$PATH:$HOME/.local/bin"
export PATH=$PATH:$GOPATH/bin
export GO_PATH=~/go
export PATH=$PATH:/$GO_PATH/bin
尝试删除所有这些行，并替换为：
无需多次导出PATH。
Also using
~inexport GO_PATH=~/gocan cause issues.Once you add the lines to
.bashrcreload your terminal, or execute these same lines in the terminal, so they take effect.