Not Working on iVim(iPadOS)

[suliveevil]

my settings is at the last.

Environment (please complete the following information):

• OS: iPadOS
• Vim version: Vim 8.1.2110, iVim 2.16(1)
• vim-which-key version: the latest
• Have you reproduced with a minimal vimrc: yes,but I couldn’t start iVim from outside command vim -u min.vim

“ .vimrc
source $HOME/vim/test.vim

“~/vim/test.vim
set nocompatible
set runtimepath^=~/vim/pack/_enhance/start/vim-which-key
syntax on
filetype plugin indent on

Describe the bug

In command mode, run :WhichKey
Get E492: not an editor command: WhichKey

my setting

"✅ vim-which-key
let g:mapleader = "\<Space>"
let g:maplocalleader = ','

let mapleader='<space>' 
" WhichKey leader mapping
nnoremap <silent> <space> :WhichKey <space><cr>
vnoremap <silent> <space> :WhichKeyVisual <space><cr>

" YOUR MAPPINGS HERE ======
let g:which_key_map['w'] = {
      \ 'name' : '+windows' ,
      \ 'w' : ['<C-W>w'     , 'other-window']          ,
      \ 'd' : ['<C-W>c'     , 'delete-window']         ,
      \ '-' : ['<C-W>s'     , 'split-window-below']    ,
      \ '|' : ['<C-W>v'     , 'split-window-right']    ,
      \ '2' : ['<C-W>v'     , 'layout-double-columns'] ,
      \ 'h' : ['<C-W>h'     , 'window-left']           ,
      \ 'j' : ['<C-W>j'     , 'window-below']          ,
      \ 'l' : ['<C-W>l'     , 'window-right']          ,
      \ 'k' : ['<C-W>k'     , 'window-up']             ,
      \ 'H' : ['<C-W>5<'    , 'expand-window-left']    ,
      \ 'J' : ['resize +5'  , 'expand-window-below']   ,
      \ 'L' : ['<C-W>5>'    , 'expand-window-right']   ,
      \ 'K' : ['resize -5'  , 'expand-window-up']      ,
      \ '=' : ['<C-W>='     , 'balance-window']        ,
      \ 's' : ['<C-W>s'     , 'split-window-below']    ,
      \ 'v' : ['<C-W>v'     , 'split-window-below']    ,
      \ '?' : ['Windows'    , 'fzf-window']            ,
      \ }
" bind WhichKey
call WhichKey#register("<space>", "g:which_key_map")

[liuchengxu]

This is not an issue of vim-which-key, you should seek for help on loading a Vim plugin properly for your system. Ensure you have tried some complete yet minimal vimrc like https://github.com/liuchengxu/vim-which-key/wiki/mimimal-vimrc.

[suliveevil]

Ok，thank you，I will try to figure it out.