`:Telescope symbols` throws `attempt to call field 'create' (a nil value)`

[joshfrench]

Expected behavior: A telescope picker

Actual behavior: E5108: Error executing lua .../nvim/plugged/telescope.nvim/lua/telescope/pickers.lua:302: attempt to call field 'create' (a nil value)

To reproduce:

• Put any valid json symbol source in the rtp, e.g. ~/.config/nvim/data/telescope-sources/emoji.json
• Start nvim
• :Telescope symbols

Environment:

• Latest version of telescope.nvim installed via :PlugUpdate telescope.nvim
• Neovim v0.5.0 installed via homebrew

• Telescope config:

  local actions = require("telescope.actions")
  local action_state = require("telescope.actions.state")
  local custom_actions = {}
  function custom_actions.fzf_multi_select(prompt_bufnr)
  local picker = action_state.get_current_picker(prompt_bufnr)
  local num_selections = table.getn(picker:get_multi_selection())
  
  if num_selections > 1 then
      actions.send_selected_to_qflist(prompt_bufnr)
      actions.open_qflist()
  else
      actions.file_edit(prompt_bufnr)
  end
  end
  require'telescope'.setup{
  defaults = {
  path_display = {"shorten"},
  mappings = {
          i = {
              -- close on escape
              ["<esc>"] = actions.close,
              ["<tab>"] = actions.toggle_selection + actions.move_selection_previous,
              ["<s-tab>"] = actions.toggle_selection + actions.move_selection_next,
              ["<cr>"] = custom_actions.fzf_multi_select
          },
          n = {
              ["<tab>"] = actions.toggle_selection + actions.move_selection_previous,
              ["<s-tab>"] = actions.toggle_selection + actions.move_selection_next,
              ["<cr>"] = custom_actions.fzf_multi_select
          }
      }
  }
  }

[fdschmidt93]

If you get this error, this should not be specific to telescope-symbols but apply to any picker.

See https://github.com/nvim-telescope/telescope.nvim/issues/1105

In brief, please check that telescope.nvim and plenary.nvim are both up to date and that no stale version, in particular of plenary, are in your runtimepath.

lua print(vim.inspect(require"plenary.popup")) should look like this. If not, it's one of the aforementioned issues.

{                                                                                                                                                                                      
  _callbacks = {},
  _hidden = {},
  _pos_map = {
    botleft = "SW",
    botright = "SE",
    topleft = "NW",
    topright = "NE"
  },
  create = <function 1>,
  execute_callback = <function 2>
}

[joshfrench]

@fdschmidt93 Thanks, that did the trick!