[BUG]Failed to ensure Node runtime: Node installer failed: Acquiring lock...

[htammen]

Describe the bug
When I start neovim or run the commands ":TabnineChat" or ":TabnineAgent" I get the following error.

 Error 16:36:26 notify.error Failed to ensure Node runtime: Node installer failed: Acquiring lock...
Lock acquired.
Platform: linux-x64
Downloading https://update.tabnine.com/update/nodejs/v24.12.0/linux-x64.tar.gz...
Error: https://update.tabnine.com/update/nodejs/v24.12.0/linux-x64.tar.gz: status code 403

I installed the newest tabnine-nvim plugin into my lazyvim installation. Then I had to install newest cargo and rustc versions to be able to build the binaries in webview directory.

cargo --version
cargo 1.93.1 (083ac5135 2025-12-15)

rustc --version
rustc 1.93.1 (01f6ddf75 2026-02-11)

To Reproduce
Don't know

Expected behavior
Error should not happen and Tabnine Chat/Agent window should display a prompt.

Version Info:

• OS (try cat /etc/os-release):

cat /etc/os-release
PRETTY_NAME="Ubuntu 24.04.3 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.3 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo

• Neovim version (nvim -v):

nvim -v
NVIM v0.12.0-dev-1742+gad438b6b14
Build type: RelWithDebInfo
LuaJIT 2.1.1764270282
Run "nvim -V1 -v" for more info

• Installed Tabnine Binaries (ls -A /path/to/plugin/binaries):

ls -A -- "$(nvim --headless -c 'lua io.stdout:write(vim.fn.stdpath("data"))' -c qa)"/*/tabnine-nvim/binaries/
4.321.0

• Active Tabnine Binaries (cat /path/to/plugin/binaries/.active):

cat -- "$(nvim --headless -c 'lua io.stdout:write(vim.fn.stdpath("data"))' -c qa)"//tabnine-nvim/binaries/.active
cat: '/home/helmut/.local/share/nvim//tabnine-nvim/binaries/.active': Datei oder Verzeichnis nicht gefunden (File or directory not found)

Additional context

[htammen]

As long as the bug is not fixed I reverted the plugin to this commit 6d209e52239e09e19c4913595cb253d2c364afa8.

[satoyan]

I have same problem. Error says

Failed to ensure Node runtime: Node installer failed: Acquiring lock...                                                                                                       
Lock acquired.                                                                                                                                                                
Platform: linux-x64                                                                                                                                                           
Downloading https://update.tabnine.com/update/nodejs/v24.12.0/linux-x64.tar.gz...                                                                                             
Error: https://update.tabnine.com/update/nodejs/v24.12.0/linux-x64.tar.gz: status code 403   

Actually such resouce does not exist.

[DavidMertz]

I receive pretty much the same thing:

Failed to ensure Node runtime: Node installer failed: Acquiring lock...
Lock acquired.                                                                                                              
Platform: linux-x64                                                                                                         
Downloading https://update.tabnine.com/update/nodejs/v24.12.0/linux-x64.tar.gz...                                           
Error: https://update.tabnine.com/update/nodejs/v24.12.0/linux-x64.tar.gz: status code 403

This problem started popping up recently. This may be because I upgraded to Node.js v24 in my environment. However, if I switch to nvm use 22 before launching Neovim, it doesn't solve it, and it still looks for the URL to v24. I'm not sure if there's another copy of Node lurking somewhere that tabnine-nvim is looking at.

It may be because I upgraded to:

% type nvim
nvim is hashed (/snap/bin/nvim)
% nvim --version
NVIM v0.12.1
Build type: RelWithDebInfo
LuaJIT 2.1.1774638290
Run "nvim -V1 -v" for more info

(from v0.12.0-dev that was installed in a different location).

Notwithstanding the complaint when I start Neovim, the "spicy autocomplete" seems to be working. And TabnineStatus reports "tabnine pro". So things are basically still working, but the nag is bothersome.

TabnineAgent and other capabilities complain about

tabnine_webview binary not found, did you remember to build it first? `cargo build --release` inside `webview/` directory

I tried building the webview binary and launching it, but that had no effect. However, I just built it in some random location not related to nvim. I'm not sure how to point Neovim or tabnine-nvim to that binary location. I have not previously been using that capability though, so this broken part has probably always been there.