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Description
Description
After updating to the latest nvim-tree.lua (commit dd2364f from 05/08/25 ), I started getting this error when opening the tree:
Error detected while processing BufEnter Autocommands for "*":
Error executing lua callback: .../nvim-tree/explorer/view.lua:111: Invalid 'group': 60
stack traceback:
[C]: in function 'nvim_create_autocmd'
.../nvim-tree/explorer/view.lua:111: in function 'create_autocmds'
.../nvim-tree/explorer/view.lua:225: in function 'create_buffer'
.../nvim-tree/explorer/view.lua:539: in function 'open_in_win'
.../nvim-tree/lib.lua:121: in function 'open'
.../nvim-tree/actions/root/change-dir.lua:92: in function 'f'
.../nvim-tree/actions/root/change-dir.lua:77: in function 'force_dirchange'
.../nvim-tree.lua:111: in function <.../nvim-tree.lua:98>
This did not happen before the recent refactor commits (`#3170` and `#3174`).
---
### Steps to Reproduce
1. Install `nvim-tree` via `lazy.nvim`.
2. Use the following minimal config:
```lua
return {
 "nvim-tree/nvim-tree.lua",
 commit = "a9156c0",
 dependencies = { "DaikyXendo/nvim-material-icon" },
 keys = {
  { "<leader>e", function() require('nvim-tree.api').tree.focus() end, desc = "Focus file explorer" },
  { "<C-b>", "<cmd>NvimTreeToggle<cr>", desc = "Toggle file explorer" },
 },
 config = function()
    local tree_opened = false
    require("nvim-tree").setup({
     renderer = {
       icons = {
         webdev_colors = true,
       },
       group_empty = true,
     },
     sort_by = "case_sensitive",
     view = {
       width = 30,
       side = "right"
     },
     filters = {
       dotfiles = false,
       -- custom = { ".git" },
     },
     update_focused_file = {
       enable = true,
       update_cwd = false,
       update_root = false,
       ignore_list = {},
     },
     on_attach = function(bufnr)
       local api = require("nvim-tree.api")
       if not tree_opened then
          tree_opened = true
          api.tree.change_root_to_node()
       end
      api.config.mappings.default_on_attach(bufnr)
      
      -- Only overriding file opening behavior
      vim.keymap.set('n', '<C-j>', function()
        local node = api.tree.get_node_under_cursor()
        if node.type == "file" then
          local last_win = vim.fn.winnr('#')
          if last_win > 0 and vim.api.nvim_win_is_valid(last_win) then
            vim.cmd(last_win .. "wincmd w")
            vim.cmd("edit " .. node.absolute_path)
          else
            api.node.open.edit()
          end
        end
      end, { buffer = bufnr })
      
      end,
   })
 end,
}
- Open Neovim under a folder and the error will show:
$ nvim some/folder/path
- Error appears.
Expected Behavior
The tree should open without any errors.
Actual Behavior
The error above appears immediately when the tree opens.
Environment
- **Neovim version: 0.11.2
- OS: macOS
- nvim-tree commit: dd2364f(4 days ago)
- Plugin manager: lazy.nvim
Additional Info
- Rolling back to commit a9156c0(from 24/07/25) fixes the problem.
- Seems related to augroup handling in the refactor commits #3170and#3174.
### Neovim version
```text
NVIM v0.11.2
Build type: Release
LuaJIT 2.1.1748459687
Operating system and version
macOs Sequoia 15.4
Windows variant
No response
nvim-tree version
version was * and now using commit a9156c0 (the one that the problem do not exits)
Clean room replication
return {
 "nvim-tree/nvim-tree.lua",
 commit = "a9156c0",
 dependencies = { "DaikyXendo/nvim-material-icon" },
 keys = {
  { "<leader>e", function() require('nvim-tree.api').tree.focus() end, desc = "Focus file explorer" },
  { "<C-b>", "<cmd>NvimTreeToggle<cr>", desc = "Toggle file explorer" },
 },
 config = function()
    local tree_opened = false
    require("nvim-tree").setup({
     renderer = {
       icons = {
         webdev_colors = true,
       },
       group_empty = true,
     },
     sort_by = "case_sensitive",
     view = {
       width = 30,
       side = "right"
     },
     filters = {
       dotfiles = false,
       -- custom = { ".git" },
     },
     update_focused_file = {
       enable = true,
       update_cwd = false,
       update_root = false,
       ignore_list = {},
     },
     on_attach = function(bufnr)
       local api = require("nvim-tree.api")
       if not tree_opened then
          tree_opened = true
          api.tree.change_root_to_node()
       end
       -- Use all default mappings
      api.config.mappings.default_on_attach(bufnr)
      
      -- Only override file opening behavior
      vim.keymap.set('n', '<C-j>', function()
        local node = api.tree.get_node_under_cursor()
        if node.type == "file" then
          local last_win = vim.fn.winnr('#')
          if last_win > 0 and vim.api.nvim_win_is_valid(last_win) then
            vim.cmd(last_win .. "wincmd w")
            vim.cmd("edit " .. node.absolute_path)
          else
            api.node.open.edit()
          end
        end
      end, { buffer = bufnr })
      
      end,
   })
 end,
}Steps to reproduce
- nvim some/folder/path
Expected behavior
Before the update nvim-tree simply started as the single buffer and then I opened another file buffers and nvim stayed on it's position (right, my custom config)
Actual behavior
Error detected while processing BufEnter Autocommands for "*":
Error executing lua callback: .../nvim/lazy/nvim-tree.lua/lua/nvim-tree/explorer/view.lua:111: Invalid 'group': 60
stack traceback:
[C]: in function 'nvim_create_autocmd'
.../nvim/lazy/nvim-tree.lua/lua/nvim-tree/explorer/view.lua:111: in function 'create_autocmds'
.../nvim/lazy/nvim-tree.lua/lua/nvim-tree/explorer/view.lua:225: in function 'create_buffer'
.../nvim/lazy/nvim-tree.lua/lua/nvim-tree/explorer/view.lua:539: in function 'open_in_win'
...ocal/share/nvim/lazy/nvim-tree.lua/lua/nvim-tree/lib.lua:121: in function 'open'
.../nvim-tree.lua/lua/nvim-tree/actions/root/change-dir.lua:92: in function 'f'
.../nvim-tree.lua/lua/nvim-tree/actions/root/change-dir.lua:77: in function 'force_dirchange'
...o/.local/share/nvim/lazy/nvim-tree.lua/lua/nvim-tree.lua:111: in function <...o/.local/share/nvim/lazy/nvim-tree.lua/lua/nvim-tree.lua:98>