My init.vim looks like:
(Windows 10)
set clipboard=unnamedplus
call plug#begin()
Plug 'tpope/vim-surround'
call plug#end()
but nvim.exe tells me that Unknown function: plug#begin
'runtimepath' must be wrong. Does it work in nvim itself? Read the doc for vim-plug .
Also if you're using WSL config flag, you must have plug installed in WSL neovim, not windows (same for config)
My bad, I needed to put plug.vin under autoload dir.
great to hear! i'm closing the issue then