"no debugger installed" when trying to start debugger

[mteodor]

I've installed
go-plus
go-debug
in
atom v 1.26.1
on ubuntu 18.04 with node 12
but fails when trying to start debugger
getting popup with message "no debugger installed..."

$ go version
go version go1.12.7 linux/amd64

$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/mirko/.cache/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/mirko/vscode-workspace"
GOPROXY=""
GORACE=""
GOROOT="/snap/go/4098"
GOTMPDIR=""
GOTOOLDIR="/snap/go/4098/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build121894011=/tmp/go-build -gno-record-gcc-switches"