Invalid tunnel configuration: tunnel already exists

[vitalii7777]

With latest version 5.0.0-beta.2 after fresh install we get permanent error on start tunnel:

body: '{"error_code":102,"status_code":400,"msg":"invalid tunnel configuration","details":{"err":"tunnel \\"1dcd323f-8402-4d43-bcab-06de83d51aa4\\" already exists"}}\n'

The reason is new binary file ngrok /node_modules/ngrok/bin/ngrok (from 17 Sep - 25.2MB). With previous binary works well (27.7MB)

Impossible to use at CI, etc

[vitalii7777]

@bubenshchykov @philnash @bmpngrok fyi

[bmpngrok]

Note that I'm not a maintainer on this library and this is not an official ngrok library.

This library works via the HTTP API on the ngrok binary. Prior to the 17 Sep 2025 release, the ngrok binary would not prevent you from creating tunnels with duplicate names, despite the fact that this had unexpected behavior (you'd leave behind a dead tunnel) and was not intended. It sounds like this library was relying on that behavior to operate. This is listed in the release notes.

[jdbevan]

I'd recommend using the official package @ngrok/ngrok instead, that worked for me