Error thrown when using omnicompletion

[casr]

With the following plugins installed:

• L3MON4D3/LuaSnip
• hrsh7th/cmp-nvim-lsp
• hrsh7th/nvim-cmp
• neovim/nvim-lspconfig
• saadparwaiz1/cmp_luasnip

And an init.lua of:

local cmp = require("cmp")
local lspconfig = require("lspconfig")

-- set only to present the error unobscured
vim.opt.pumheight = 10

cmp.setup({
  snippet = {
    expand = function(args)
      require("luasnip").lsp_expand(args.body)
    end,
  },
  mapping = cmp.mapping.preset.insert(),
  sources = cmp.config.sources({
    { name = "nvim_lsp" },
    { name = "luasnip" },
  }),
})

local capabilities = require("cmp_nvim_lsp").default_capabilities()

lspconfig.tsserver.setup({ capabilities = capabilities })

I can trigger an error by running this sequence:

• nvim a.js
• id<C-x><C-o>

In other words, open a JavaScript file and type id to go to insert mode and add 'd' to the buffer. This triggers nvim-cmp's completion menu to appear. If you follow up with Ctrl-x Ctrl-o to trigger omnicompletion then the error throws like below. It seems to be triggered by passing on capabilities to the client from cmp-nvim-lsp.

And in text to help for searching issues:

Error executing vim.schedule lua callback: /opt/local/share/nvim/runtime/lua/vim/lsp.lua:2087: attempt to in
dex field 'range' (a nil value)
stack traceback:
        /opt/local/share/nvim/runtime/lua/vim/lsp.lua:2087: in function 'adjust_start_col'
        /opt/local/share/nvim/runtime/lua/vim/lsp.lua:2163: in function 'handler'
        /opt/local/share/nvim/runtime/lua/vim/lsp.lua:1394: in function ''
        vim/_editor.lua: in function <vim/_editor.lua:0>

$ nvim --version
NVIM v0.9.0
Build type: Release
LuaJIT 2.1.0-beta3

   system vimrc file: "$VIM/sysinit.vim"
  fall-back for $VIM: "/opt/local/share/nvim"

Run :checkhealth for more info

[casr]

Looks related to neovim/neovim#16909

Summary: given the added capabilities from cmp-nvim-lsp, omnicomplete becomes incompatible.

Work arounds I can find are either remapping omnicompletes keymap to nvim-cmp's instead:

vim.keymap.set("i", "<C-x><C-o>", cmp.complete)

or just disable the problematic part of the LSP spec that omnicomplete doesn't work with:

local capabilities = require("cmp_nvim_lsp").default_capabilities({
  insertReplaceSupport = false,
})