incsearch with easymotion problems

[pdoak]

I am trying to use incsearch with easymotion but I am getting an error:Unknown function:EasyMotion#go when I try and search for something using /.

My vimrc has the following settings:

" nnoremap / <Plug>(easymotion-sn)
onoremap / <Plug>(easymotion-tn)
nmap s <Plug>(easymotion-bd-f2)
xmap s <Plug>(easymotion-bd-f2)
omap z <Plug>(easymotion-bd-t2)
nmap t <Plug>(easymotion-bd-t2)
map <Leader><Leader>l <Plug>(easymotion-lineforward)
map <Leader><Leader>j <Plug>(easymotion-j)
map <Leader><Leader>k <Plug>(easymotion-k)
map <Leader><Leader>h <Plug>(easymotion-linebackward)
" These `n` & `N` mappings are options. You do not have to map `n` & `N` to EasyMotion.
" Without these mappings, `n` & `N` works fine. (These mappings just provide
" different highlight method and have some other features )
map  n <Plug>(easymotion-next)
map  N <Plug>(easymotion-prev)

let g:EasyMotion_smartcase = 1
let g:EasyMotion_startofline = 0 " keep cursor column when JK motion
let g:EasyMotion_use_upper = 1
let g:EasyMotion_keys = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ;'

" You can use other keymappings like <C-l> instead of <CR> if you want to
" use these mappings as default search and somtimes want to move cursor with
" EasyMotion.
function! s:incsearch_config(...) abort
  return incsearch#util#deepextend(deepcopy({
  \   'modules': [incsearch#config#easymotion#module({'overwin': 1})],
  \   'keymap': {
  \     "\<CR>": '<Over>(easymotion)'
  \   },
  \   'is_expr': 0
  \ }), get(a:, 1, {}))
endfunction

noremap <silent><expr> /  incsearch#go(<SID>incsearch_config())
noremap <silent><expr> ?  incsearch#go(<SID>incsearch_config({'command': '?'}))
noremap <silent><expr> g/ incsearch#go(<SID>incsearch_config({'is_stay': 1}))

let g:incsearch#magic = '\v' " very magic

Thanks for your help.