execute :Format error

[BacteriaZHANG]

E5108: Error executing lua [string ":lua"]:1: attempt to call field 'format' (a nil value) stack traceback: [string ":lua"]:1: in main chunk

========================== my null-ls.lua file

local null_ls_status_ok, null_ls = pcall(require, "null-ls") if not null_ls_status_ok then return end

-- https://github.com/jose-elias-alvarez/null-ls.nvim/tree/main/lua/null-ls/builtins/formatting local formatting = null_ls.builtins.formatting -- https://github.com/jose-elias-alvarez/null-ls.nvim/tree/main/lua/null-ls/builtins/diagnostics local diagnostics = null_ls.builtins.diagnostics

-- https://github.com/prettier-solidity/prettier-plugin-solidity -- npm install --save-dev prettier prettier-plugin-solidity null_ls.setup { debug = false, sources = { formatting.stylelint.with { filetypes = { "css", "sass", "scss", "less" }, }, formatting.prettier.with { extra_filetypes = { "toml", "solidity" }, }, formatting.black.with { extra_args = { "--fast" } }, formatting.stylua, formatting.google_java_format, diagnostics.flake8, }, }