nvim-tree/explorer/init.lua:66: attempt to index field 'uv' (a nil value)

[chenyekun1]

Description

nvim-tree/explorer/init.lua:66: attempt to index field 'uv' (a nil value).

Neovim version

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

Operating system and version

Windows 10

Windows variant

WSL1

nvim-tree version

8f97487

Clean room replication

require("nvim-tree").setup({
        renderer = {
                icons = {
                        show = {
                                file = false,
                                folder = false,
                                folder_arrow = false,
                                git = false,
                        },
                },
        },
        filters = {
                dotfiles = true,
        },
})

Steps to reproduce

This error occurs after :NvimTreeToggle

Expected behavior

open file tree normally.

Actual behavior

No response

[DrOptix]

I'm having the same issue when I do :NvimTreeToggle.

[benallen-dev]

I did some quick in-place hacking to be able to get back to work, perhaps it helps

diff --git a/lua/nvim-tree/explorer/init.lua b/lua/nvim-tree/explorer/init.lua
index 4cc511b..716765c 100644
--- a/lua/nvim-tree/explorer/init.lua
+++ b/lua/nvim-tree/explorer/init.lua
@@ -63,8 +63,10 @@ function Explorer:create(path)
 
   o.explorer = o
 
-  o.uid_explorer = vim.uv.hrtime()
-  o.augroup_id = vim.api.nvim_create_augroup("NvimTree_Explorer_" .. o.uid_explorer, {})
+  if vim.uv then
+    o.uid_explorer = vim.uv.hrtime()
+    o.augroup_id = vim.api.nvim_create_augroup("NvimTree_Explorer_" .. o.uid_explorer, {})
+  end
 
   o.open = true
   o.opts = config
@@ -114,7 +116,7 @@ function Explorer:create_autocmds()
   vim.api.nvim_create_autocmd("BufReadPost", {
     group = self.augroup_id,
     callback = function(data)
-      if (self.filters.config.filter_no_buffer or self.opts.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == "" then
+      if (self.uid_explorer and (self.filters.config.filter_no_buffer or self.opts.highlight_opened_files ~= "none")) and vim.bo[data.buf].buftype == "" then
         utils.debounce("Buf:filter_buffer_" .. self.uid_explorer, self.opts.view.debounce_delay, function()
           self:reload_explorer()
         end)
@@ -168,7 +170,8 @@ function Explorer:create_autocmds()
     })
   end
 
-  if self.opts.modified.enable then
+  if self.opts.modified.enable and self.uid_explorer then
     vim.api.nvim_create_autocmd({ "BufModifiedSet", "BufWritePost" }, {
       group = self.augroup_id,
       callback = function()

[benallen-dev]

I should point out that this isn't a fix, it just avoids the errors I've run into.

:version
NVIM v0.9.5
Build type: Release
LuaJIT 2.1.1710088188

[DrOptix]

Found this in neovim repo. It seems we need neovim 0.10 for vim.uv to work. I just checked and indeed I'm using neovim 0.9.5.
They suggest we use vim.loop for 0.9.5. I'll try that just to get going again. If not later I'll build neovim from sources.
neovim/neovim#27957

Update: I ended up upgrading from Fedora 39 to Fedora 40 and now I have access to neovim 0.10. For me this is no longer an issue.

[alex-courtis]

Many thanks all for finding this one.

Used vim.loop instead. That won't be removed until neovim 1.0.