就是把$GOPATH/bin中的gocode.exe复制到了$GOPATH中

首先你要正确地安装了插件。

环境

Windows 10, GO 1.15

GOROOT=c:\go

GOPATH=E:\OneDrive\code\go

问题描述

如果我们设置GO111MODULE环境变量，其值为on时自动补全很慢，其值为off时补全正常。

image.png

（说明：必须要按照在图片里那样设置环境变量，不要运行命令行set; 每次改变变量需要重启VSCode）
gomod肯定不能关了，怎么解决呢？

解决方法

gocode -debug

You should have a correctly installed Go compiler environment and 
your personal workspace ($GOPATH). If you have no idea 
what $GOPATH is, take a look here
(http://golang.org/doc/code.html). Please make sure that 
your $GOPATH/bin is available in your $PATH. This is 
important, because most editors assume that gocode binary is 
available in one of the directories, specified by 
your $PATH environment variable. Otherwise manually copy 
the gocode binary from $GOPATH/bin to a location which is 
part of your $PATH after getting it in step 2.

我就试了下, 但是我的操作有失误但歪打正着：
我把

 copy the gocode binary from $GOPATH/bin to a location which is 
part of your $PATH

看成

 copy the gocode binary from $GOPATH/bin to a location which is 
part of your $GOPATH

就是把$GOPATH/bin中的gocode.exe复制到了$GOPATH中

image.png

这不就大功告成了嘛😘😘😘😘