message: Import EventEmitter from events.
diff: @@ -7,7 +7,7 @@ import * as vscode from 'vscode'
  import type {Extension} from '../main'
  import {PdfFilePathEncoder} from './serverlib/encodepath'
  -import { EventEmitter } from 'stream'
  +import {EventEmitter} from 'events'
  class WsServer extends ws.Server {
  private readonly extension: Extension
  