Trouble using `grep_word_under_cursor` with hybrid VimL/Lua config

[pmatulis]

I can grep for files but I can't get the grep-under-cursor feature to work with my VimL/Lua hybrid configuration. Thanks in advance for any guidance.

E5108: Error executing lua [string ":lua"]:1: attempt to index field 'live_grep_args' (a nil value)
stack traceback:
        [string ":lua"]:1: in main chunk
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Here, I'm calling Telescope from init.vim:

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source ~/.config/nvim/vim/mappings.vim

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lua << EOF
require("telescope-conf")
EOF

Then in telescope-conf.lua:

local lga_actions = require("telescope-live-grep-args.actions")
local live_grep_args_shortcuts = require("telescope-live-grep-args.shortcuts")

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    live_grep_args = {
      auto_quoting = false,
      search_dirs = {
        '/Users/pmatulis/git'
      }
    },

  }

}

require('telescope').load_extension('live_grep_args')

In mappings.vim:

nnoremap <leader>g <cmd>lua require('telescope').extensions.live_grep_args.live_grep_args()<CR>
nnoremap <leader>gc <cmd>lua require('telescope').live_grep_args.shortcuts.grep_word_under_cursor()<CR>