Using Goland 2018.2 EAP
I'm going through the VGO tutorial located https://research.swtch.com/vgo-tour
Calling vgo with an empty go.mod file manually through the command line works perfectly
In Goland I get
$GOPATH/go.mod exists but should not with an empty file
cannot determine module root; please create a go.mod file there
When I delete the file
Bug or configuration error I don't understand ?