Deoplete with Neovim doesn't work

Question

I have a problem with my deoplete plugin. When I write code, I don't have automatic completion on dot. I need to manually press <c-x><c-o> to make it work.

Here is my deoplete configuration:

let g:deoplete#enable_at_startup = 1
let g:deoplete#delimiters = ['/','.']
let g:deoplete#sources#go = 'vim-go'
let g:deoplete#keyword_patterns = {}
let g:deoplete#keyword_patterns._ = '[a-zA-Z_]\k*\(?'

Here an exemple on "automatic" completion:

Then, when I press <c-x><c-o> :

I really don't know how to get the second case.

p.s: I read so many tutorials on the web and I have already searching on the stackexchange without finding.

Answer 1

You can run :checkhealth (:CheckHealth in older versions) to find any problems.

You also need deoplete-go.