The issue #29271 should be closed.

[korantu]

Problem

I have experienced #29271 issue symptom:

Error in decoration provider treesitter/highlighter.win:
Error executing lua: ...im-macos/share/nvim/runtime/lua/vim/treesitter/query.lua:252: Query error at 2:4. Invalid node type "delimiter":
  (delimiter) @markup.heading.1
   ^

stack traceback:
        [C]: in function '_ts_parse_query'

The problematic line (delimiter) @markup.heading.1 is in ~/.local/share/nvim/site/pack/packer/start/nvim-treesitter/queries/vimdoc/highlights.scm which is not packaged with vim, AFAIK.

If you comment out the problematic lines in the file:
highlights.scm then the treesitter would be happy and big part of highlight will work:

; (h1
;   (delimiter) @markup.heading.1
;   (heading) @markup.heading.1)
;
; (h2
;   (delimiter) @markup.heading.2
;   (heading) @markup.heading.2)
;
; (h3
;   (heading) @markup.heading.3)
;
; (column_heading
;   (heading) @markup.heading.4)
;
; (column_heading
;   (delimiter) @markup.heading.4
;   (#set! conceal ""))

and

; (modeline) @keyword.directive
;
; ((note) @comment.note
;   (#any-of? @comment.note "Note:" "NOTE:" "Notes:"))
;
; ((note) @comment.warning
;   (#any-of? @comment.warning "Warning:" "WARNING:"))
;
; ((note) @comment.error
;   (#any-of? @comment.error "Deprecated:" "DEPRECATED:"))

This would fix the issue #29271.

(This should have been better as comment there, but the issue is locked)

Steps to reproduce

:help TSDisable , for example, will cause the symptoms

Expected behavior

:help TSDisable would just show help

Neovim version (nvim -v)

NVIM v0.10.0

Vim (not Nvim) behaves the same?

dont have vim and it will not pick up the configuration

Operating system/version

macOS 11.5

Terminal name/version

Alacritty

$TERM environment variable

xterm-256color

Installation

https://github.com/neovim/neovim/releases/tag/v0.10.0 from releases on github repo

[clason]

That issue is about something different; the issue description is a bit misleading. Your issue is a misconfiguration on your side (if you install nvim-treesitter, you must install all bundled parsers with it).