vim-go autocompletion not working

Question

I recently installed vim-go using pathogen, but the autocompletion feature is not working. If I am using it only shows commands I've already used. My .vimrc has

filetype plugin on

" Enable autocompletion
set omnifunc=syntaxcomplete#Complete
" Select keyword as you type
:set completeopt=longest,menuone

Do I need more than just this plugin? The other feature I have tested so far are working (:GoRun, syntax highlighting). This is on a Ubuntu machine.

Answer 1

Are you typing CX CO to open the autocompletation window? This works fine for me.

On the other hand, if you want to get real-time completion (completion by type) install the following plugins YCM or neocomplete

Answer 2

The syntaxcomplete#Complete ships with Vim, not the Go filetype plugin, and it has very limited capabilities (basically, just offering the language's keywords). No wonder you're disappointed.

The ftplugin/go.vim file sets the correct, custom completion of the vim-go plugin:

setlocal omnifunc=go#complete#Complete

So, just ensure that the 'filetype' setting is correct ( go ), and that you don't have any additional configuration that overrides the plugin's.

:verbose setlocal omnifunc?

can tell you.

Answer 3

If none of these suggestions solves your problem, try killing gocode from a terminal:

gocode exit (or killall gocode it that fails)
gocode -s -debug

In case of startup failure due to a lingering unix socket, simply remove it and try again. Once everything is working, you can terminate the debug enabled gocode process (the plugin will autostart as needed)

Answer 4

This is what worked for me. default gocode pkg seems to be no longer maitained. so update it with the one below. my go and vim versions:

VIM - Vi IMproved 8.2
go version go1.16.4 

---

follow the steps below:

gocode exit 
go get -u github.com/mdempsky/gocode

---

run gocode in debug mode

gocode -s -debug

try the autocomplete.(vim-go C+X C+O)

viola! you should see the list like so: