Uncaught plugin websocket not found

11-20 17:14:05.142 28311 28311 E Tauri/Console: File: http://tauri.localhost/ - Line 0 - Msg: Uncaught plugin websocket not found

main.ts
```
import WebSocket from "@tauri-apps/plugin-websocket";

const ws = await WebSocket.connect("ws://157b-89-178-124-63.ngrok-free.app/ws");
```

I did everything according to the instructions
https://github.com/tauri-apps/tauri-plugin-websocket/tree/v2

It doesn't work