请帮我看看，Goland2018.1.4无法Debug

刚刚安装Goland2018.1.4，照着帮助敲出这么个小程序： package main

import "fmt"

func HelloGo() string { return "welcome to go language" } func main() { output := HelloGo() fmt.Println(output) }

Run就正常，但是Debug就报错！

could not launch process: The system cannot find the file specified.

Debugger finished with exit code 1

请问如何设置使得能够Debug？