neovim Copilot inserts weird character sometimes

[Jacfger]

I'm now currently using Copilot.vim 1.4.3, and I've tried 1.5.0, 1.5.1 as well. I haven't tried other versions but all of them had the problem where sometimes when I confirm the strings, <80>kD is inserted at the beginning of the strings.

After some Googling I found that it's probably a backspace character, but my keybinding doesn't contains a backspace, (it's alt+N, or Meta-N. I've also tried so it shouldn't be a problem).

Do anyone has any idea on how to fix this?

[fragov]

I have the same issue, sometimes copilot add '<80>kl<80>kD<80>kl<80' before result.

[Leixb]

I had the same issue when using copilot alongside nvim-cmp. Setting the copilot#Accept throught nvim-cmp as explained in the nvim-cmp help seems to have solved it.

Here is the relevant portion of my configuration:

vim.g.copilot_no_tab_map = true
vim.keymap.set(
    "i",
    "<Plug>(vimrc:copilot-dummy-map)",
    'copilot#Accept("")',
    { silent = true, expr = true, desc = "Copilot dummy accept" }
)

local cmp = require("cmp")
cmp.setup {
  mapping = {
    ['<M-;>'] = cmp.mapping(function(fallback)
      vim.api.nvim_feedkeys(vim.fn['copilot#Accept'](vim.api.nvim_replace_termcodes('<Tab>', true, true, true)), 'n', true)
    end)
  },
}

[pidgeon777]

This solved the problem. Thank you. 👍

[ariel-frischer]

@Leixb Don't you need to add copilot as a nvim-cmp source? This doesn't seem to work for me :/

[Leixb]

No, I don't have it as a source. You can check my full cmp and copilot configuration here:

• https://github.com/Leixb/nixos-dotfiles/blob/master/users/leix/neovim/cmp.lua
• https://github.com/Leixb/nixos-dotfiles/blob/master/users/leix/neovim/copilot-vim.lua

[ArtursTimofejevs]

If anyone else is stumbling on this issue then this is how I solved it:

• I had used vim.keymap.set in a local variable as a reusable function called map and this seems to cause issues

local map = vim.keymap.set
map("i", "<C-j>", "copilot#Accept('<CR>')", {noremap = true, silent = true, expr=true })

• I changed to using vim.api.nvim_set_keymap

local map = function (type, key, value, opts)
  local options = { noremap = true }
  if opts then options = vim.tbl_extend('force', options, opts) end
  vim.api.nvim_set_keymap(type, key, value, options)
end

Seems to have fixed the issue :)

[nklsla]

Perfect, thanks!

[torarvid]

I tried understanding why @ArtursTimofejevs's suggestion worked, and I think I might have found something in the help for vim.keymap.set when looking at the {opts} (the {noremap = true, silent = true, expr=true } in the example)

Accepts options accepted by the {opts} parameter in
|nvim_set_keymap()|, with the following notable differences:
• replace_keycodes: Defaults to true if "expr" is true.

So I was able to fix it by keeping the use of vim.keymap.set but just adding , replace_keycodes = false:

local map = vim.keymap.set
map("i", "<C-j>", "copilot#Accept('<CR>')", {noremap = true, silent = true, expr=true, replace_keycodes = false })

I believe this fixed the issue for me.

[nburnett]

This solved my issue using Astrovim as my base config, Thank you!

[efficacy38]

this also works for me, thanks a lots!

[phrmendes]

amazing! thanks a lot ❤️❤️❤️❤️

[paulo-granthon]

finally after hours, managed to configure copilot.vim with C-a as accept thanks to your comment. THANKS!

[gmtborges]

Thank you, man!! Save my day