[ERROR]: Property 'openPlugin' does not exist on type 'typeof Deno'

[muhammedMoussa]

I have this config

import { init, MongoClient } from "https://deno.land/x/mongo@v0.6.0/mod.ts";
await init();
const client = new MongoClient();
client.connectWithUri("mongodb://localhost:27017");
const db = client.database("deno");
export default db;

get error

error: TS2339 [ERROR]: Property 'openPlugin' does not exist on type 'typeof Deno'.
  return Deno.openPlugin(localPath);
              ~~~~~~~~~~
    at https://deno.land/x/plugin_prepare@v0.6.0/mod.ts:64:15
[denon] app crashed - waiting for file changes before starting ...

I'm on

deno 1.0.2 
v8 8.4.300 
typescript 3.9.2

[Pandawan]

Plugins are an unstable feature, you need to add --unstable and --allow-plugin to allow Deno to load plugins.