I try uninstall go 1.9.2 ，then, run go get OK!
Mac 10.13

➜ ~ brew uninstall go
Error: Refusing to uninstall /usr/local/Cellar/go/1.9.2
because it is required by glide 0.13.0, which is currently installed.
You can override this and force removal with:
brew uninstall --ignore-dependencies go
➜ ~ brew uninstall --ignore-dependencies go
Uninstalling /usr/local/Cellar/go/1.9.2... (7,646 files, 293.9MB)
go 1.9, 1.8.3 2 are still installed.
Remove all versions with brew uninstall --force go.
➜ ~ go version
go version go1.9 darwin/amd64
➜ ~ go get -u github.com/go-ego/gse
➜ ~

The error is telling you that you have a weird mix of Go versions on top of one another, or mixed up together in your $PATH.

For questions about how to install Go, see https://golang.org/wiki/Questions.

I had this same problem recently. I had a version of go in my $PATH that didn't match the data in $GOROOT

In my specific instance I had installed go by hand in /usr/local/go and then brew installed a different version in /usr/local/bin

@lindner

Just do
brew uninstall --ignore-dependencies go
All fine!