How to install on unix ?

[lewisadm]

Warning: I will close the bug issue without the minimal init.vim and the
reproduce ways.

I run the following:
curl https://raw.githubusercontent.com/Shougo/dein.vim/master/bin/installer.sh > installer.sh

For example, we just use ~/.cache/dein as installation directory

sh ./installer.sh ~/.cache/dein

Then added the following to init.vim:
if &compatible
set nocompatible " Be iMproved
endif

" Required:
" Add the dein installation directory into runtimepath
set runtimepath+={path to dein.vim directory}

" Required:
call dein#begin({path to plugin base path directory})

" Let dein manage dein
call dein#add({path to dein.vim directory})
if !has('nvim')
call dein#add('roxma/nvim-yarp')
call dein#add('roxma/vim-hug-neovim-rpc')
endif

" Add or remove your plugins here like this:
"call dein#add('Shougo/neosnippet.vim')
"call dein#add('Shougo/neosnippet-snippets')

" Required:
call dein#end()

" Required:
filetype plugin indent on
syntax enable

" If you want to install not installed plugins on startup.
"if dein#check_install()
" call dein#install()
"endif

Problems summary

Error detected while processing /home/lewis/.config/nvim/init.vim:
line 10:
E15: Invalid expression: ~/.config/nvim/plugin})
E116: Invalid arguments for function dein#begin
line 13:
E15: Invalid expression: ~/.config/nvim/plugin})
E116: Invalid arguments for function dein#add
line 24:
E117: Unknown function: dein#end

Expected

oh my dream would be:
wget github.com/blah/blah/path/dein.vim/install.sh
./install.sh
and it works.

Environment Information (Required!)

• dein.vim version(SHA1):
  current

• OS:
  openbsd 7.1

• Vim/neovim version:

nvim v0.6.1

Provide a minimal .vimrc with less than 50 lines (Required!)

$ cat .vimrc
cat: .vimrc: No such file or directory

The reproduce ways from Vim starting (Required!)

1. vim
2. errors

Screen shot (if possible)

Upload the log messages by :redir and :message (if errored)

[lewisadm]

I tried to install again... (it about 2 hours I'm trying)...

$ rm -rf .cache/dein
$ mkdir .nvim/dein
$ sh ./installer.sh .nvim/dein

after this I created the nvim conf file in .config/nvim/init.vim like this:

if &compatible
  set nocompatible      
endif
set runtimepath+=/home/lewis/.nvim/dein//repos/github.com/Shougo/dein.vim
call dein#begin('/home/lewis/.nvim/dein/')
call dein#add('/home/lewis/.nvim/dein//repos/github.com/Shougo/dein.vim')
call dein#end()
filetype plugin indent on
syntax enable

Then I run nvim and then :call dein#install(), and the following are the new errors:

[dein] Target plugins are not found.
[dein] You may have used the wrong plugin name, or all of the plugins are already installed.

[Shougo]

You have specified only one plugin dein.vim.
It is already installed.
So dein.vim cannot find install plugins.

Please read the messages.
It is expected behavior.