I can't get any suggestions at any time,just like the plugin doesn't work.

[zkip]

main.go:

package main

import (
	"fmt"
)

func main() {
	fmt.
}

gocode -f=json --in=main.go autocomplete 52

[]

[nsf]

That's weird, it should work. Probably it can't find your GOROOT and GOPATH. Try running gocode in a separate terminal window: gocode close && gocode -s -debug. Then in another window try doing autocompletion and see what it prints.

[zkip]

As you indicate, the console outputs this information:

*:***>gocode -s -debug
2017/09/17 04:30:34 Go project path: .
2017/09/17 04:30:34 Got autocompletion request for 'D:\warplace\main.go'
2017/09/17 04:30:34 Cursor at: 52
2017/09/17 04:30:34 -------------------------------------------------------
package main

import (
"fmt"
)

func main() {
fmt.#
}
2017/09/17 04:30:34 -------------------------------------------------------
2017/09/17 04:30:34 Import path "fmt" was not resolved
2017/09/17 04:30:34 Gocode's build context is:
2017/09/17 04:30:34 GOROOT: c:\go
2017/09/17 04:30:34 GOPATH: D:\lib\go
2017/09/17 04:30:34 GOOS: windows
2017/09/17 04:30:34 GOARCH: amd64
2017/09/17 04:30:34 BzlProjectRoot: ""
2017/09/17 04:30:34 GBProjectRoot: ""
2017/09/17 04:30:34 lib-path: ""
2017/09/17 04:30:34 Error parsing input file (inner block):
2017/09/17 04:30:34 4:6: expected selector or type assertion, found ';'
2017/09/17 04:30:34 extracted expression tokens: fmt
2017/09/17 04:30:34 Import path "fmt" was not resolved
2017/09/17 04:30:34 Gocode's build context is:
2017/09/17 04:30:34 GOROOT: c:\go
2017/09/17 04:30:34 GOPATH: D:\lib\go
2017/09/17 04:30:34 GOOS: windows
2017/09/17 04:30:34 GOARCH: amd64
2017/09/17 04:30:34 BzlProjectRoot: ""
2017/09/17 04:30:34 GBProjectRoot: ""
2017/09/17 04:30:34 lib-path: ""
2017/09/17 04:30:34 Offset: 0
2017/09/17 04:30:34 Number of candidates found: 0
2017/09/17 04:30:34 Candidates are:
2017/09/17 04:30:34 =======================================================

[nsf]

Well, see what it prints for GOROOT, obviously "fmt" package wasn't resolved and it says that GOROOT is "C:\go". Does that match your Go installation? If you build Go from source code it will set a magic constant GOROOT default to whatever place it was compiled in. If you move the Go compiler suite later to a different location, there will be problems with that kind of approach. As for gocode, it will pass to server whatever environment variables client gets when doing an autocompletion request. Server will use those.

[zkip]

Alright,but how i config this?like GOROOT or other.

[nsf]

Environment variables.

[zkip]

Oh,It's great that you solved my problem.
As you indicated, I added the environment variable, and then I can use it.
Thank you very much.