sublime text3如何解决Gosublime无法自动补全代码

Sublime Text3.2.1
go version go1.12.1 darwin/amd64
Gosublime 18.11.28

git clone https://github.com/DisposaBoy/GoSublime.git

Perferences–Package Settings–Gosublime–Settings - User
{
    "env": {
        "GOPATH": "/data",
        "GOROOT": "/usr/local/go",
        "PATH": "$GOROOT:$GOPATH:$GOROOT/bin",
    },
    "gscomplete_enabled": true,
    "fmt_enabled": true,
    "fmt_tab_indent": false,
    "fmt_tab_width": 4,
    "autocomplete_snippets": true,
    "autocomplete_tests": true,
    "autocomplete_builtins": true,
    "autocomplete_closures": true,
    "autocomplete_suggest_imports": true,
    "calltips": true,
    "use_named_imports": true,
    "autoinst": true,
    "ipc_timeout": 1,
    "fmt_cmd": ["goimports"],
    "on_save": [
        {"cmd": "gs_comp_lint"},
        {"cmd": "goimports"}
    ],
    "lint_enabled": true,
    "linters": [
        {"cmd": ["go", "run"]}
    ],
    "comp_lint_enabled": true,
    "comp_lint_commands": [
        {"cmd": ["go", "install"]}
    ],
}

Perferences–Package Settings–Gosublime–Key Bindings - Default
{
"keys": ["ctrl+q"],
// "keys": ["super+.", "super+h"],
"command": "gs_doc",
"args": {"mode": "hint"},
"context": [{ "key": "selector", "operator": "equal", "operand": "source.go" }]
},