How to let which-key work with minimum settings?

[dlintw]

How to let which-key work? here is my ~/.config/nvim/init.lua
Only setup lazy.nvim & which-key.

When I press a key e.g. 'ctrl-w', it can not display anything.

local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git",
    "clone",
    "--filter=blob:none",
    "https://github.com/folke/lazy.nvim.git",
    "--branch=stable", -- latest stable release
    lazypath,
  })
end
vim.opt.rtp:prepend(lazypath)

-- plugins {{{1
require("lazy").setup({
  -- UI {{{2
  "folke/which-key.nvim", -- {{{3
}) -- end plugin {{{2

[arTTiK9408]

I don't have that much experience on Lua or lazy.nvim, but i guess you need 'folke/whick-key.nvim' before calling setup
You may try the default installation method.

{
  "folke/which-key.nvim",
  event = "VeryLazy",
  init = function()
    vim.o.timeout = true
    vim.o.timeoutlen = 300
  end,
  opts = {
    -- your configuration comes here
    -- or leave it empty to use the default settings
    -- refer to the configuration section below
  }
}