go get时xx cannot download,xx is a GOROOT, not a GOPATH,以及cannot find packag “.“in:$GOPATH/src/vendor

转载自https://studygolang.com/articles/27122

https://stackoverflow.com/questions/42809990/go-get-cannot-download-home-azhukov-go-is-a-goroot-not-a-gopath

"This error is caused by the go tool detecting a Go installation in your GOPATH. It's not telling you that your GOPATH is the GOROOT (that's a different message), it's telling your GOPATH looks like a GOROOT.

Cleaning out your GOPATH and running go get again will fix the error."

studygolang.com的博主"拉风月"实验出来只要删除$GOPATH下src下的cmd目录，go tool就不会侦测到$GOPATH中有安装Go的痕迹了，也就不会错误地认为$GOPATH是$GOROOT了。

是我之前很蠢地把$GOROOT/src给复制到$GOPATH/src了，我也不知道我为什么那样干。

补充：

也不要在$GOPATH/src放置vendor目录，否则当导入$GOPATH/src下的包时会报错"cannot find package "." in: /Users/haypin/Go/src/vendor/Go1206pkg4path"。

stupid，干得这都是什么事儿呀？