plugin.Open: plugin was built with a different version of package runtime

[broady]

$ go version
go version go1.9 linux/amd64
$ go get -u neugram.io/ng
$ go install net/http
$ ng
ng> import "net/http"
ng: neugram panic: plugin: failed to open Go package "http": plugin.Open: plugin was built with a different version of package runtime

Not really sure what to do from here. What can I do to troubleshoot this error?

[crawshaw]

There are several bugs in Go 1.9 that may be causing this. (I've been fixing them slowly for Go 1.10.) I'm not sure which one it is though, or how better to diagnose this.