Webpack Dashboard Issue 335 Repro

Repro for webpack-dashboard issue 335.

Run yarn start, the dev server should start without problem.

However, when running yarn start:dash which uses webpack-dashboard, the dev server crashes with the following error:

yarn start:dash
yarn run v1.22.10
$ webpack-dashboard -m -- webpack serve --color --config ./webpack.config.js
TypeError: Cannot read property 'type' of null
    at Socket.<anonymous> (/Users/zicodeng/code/webpack-dashboard-issue-335-repro/node_modules/webpack-dashboard/bin/webpack-dashboard.js:79:21)
    at Socket.emit (events.js:315:20)
    at Socket.emitUntyped (/Users/zicodeng/code/webpack-dashboard-issue-335-repro/node_modules/socket.io/dist/typed-events.js:69:22)
    at /Users/zicodeng/code/webpack-dashboard-issue-335-repro/node_modules/socket.io/dist/socket.js:428:39
    at processTicksAndRejections (internal/process/task_queues.js:79:11)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.