You might be hitting the same problem as https://github.com/golang/go/issues/24694, which was fixed on April 5. Try updating your vgo (go get -u golang.org/x/vgo) and see if you get a different result.
The key thing is that vgo needs the GOROOT directory available to look at. It looks first in $VGOROOT, and then in $GOROOT, and then in the GOROOT compiled into the binary. If you have neither VGOROOT or GOROOT set, and the binary was built and then the GOROOT was moved, bad things will happen. But with commit 7373d8bcff7c682d097eabe987299681fa40a9cf, the error is more understandable. -jeff > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.