cmp-buffer-lines breaks LSP about nvim-cmp-buffer-lines HOT 1 CLOSED

LSP servers stop autocomplete your code.

I think the reason you are no longer seeing LSP autocompletion is that you have buffer-lines as the only source in the cmp setup. Try something like this:

require "cmp".setup {
    sources = {
        { name = "nvim_lsp" },
        { name = "buffer-lines" }
    }
}

Make sure you also have lspconfig and cmp-nvim-lsp installed.

In pyright, it displays errors, and warnings for unused variables, but it doesn't autocomplete the code.

Try what I did above.

In clangd, it doesn't see functions from STL, and sees cout as an error (despite the fact gcc has no problem to compile it).

Sorry, I do not have experience with programming in C++ so I do not know what that means. Can you please provide me a reproducible example?

from nvim-cmp-buffer-lines.