TypeError: Cannot read property 'type' of null

[zicodeng]

Please provide a description of the bug / issue, and provide the details below:

Not sure if this is related to this plugin or not, but after upgrading webpack-dev-server to the latest version (4.0.0), this error started showing up. However, webpack-dev-server runs fine without this plugin 🤔

TypeError: Cannot read property 'type' of null
    at Socket.<anonymous> (/Users/zicodeng/code/wenwentips/client/node_modules/webpack-dashboard/bin/webpack-dashboard.js:79:21)
    at Socket.emit (events.js:315:20)
    at Socket.emitUntyped (/Users/zicodeng/code/wenwentips/client/node_modules/socket.io/dist/typed-events.js:69:22)
    at /Users/zicodeng/code/wenwentips/client/node_modules/socket.io/dist/socket.js:428:39
    at processTicksAndRejections (internal/process/task_queues.js:75:11)
error Command failed with exit code 1.

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If the issue is visual, please provide screenshots here

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Steps to reproduce the problem

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Please provide a gist of relevant files

1. package.json (specifically the script you are using to start the dashboard)

"webpack-cli": "^4.8.0",
"webpack-dashboard": "^3.3.3",
"webpack-dev-server": "^4.0.0",

2. webpack.config.js
3. index.js (Your express based dev server, if applicable)

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More Details

• What operating system are you on? MacOS
• What terminal application are you using? iTerm2
• What version of webpack-dashboard are you using? 3.3.3
• What is the output of running echo $TERM? xterm-256color

[ryan-roemer]

Hi @zicodeng -- can you open up a minimal repository with install + error reproduction steps? That would greatly accelerate our ability to dig in and figure out what's up. Thanks!

[zicodeng]

@ryan-roemer Thanks for your response! I have created a repo for reproduction. Let me know if you have any questions. Thanks for looking into this :)

[zicodeng]

@ryan-roemer Any update?

[ryan-roemer]

Hi! Thanks for the repo. I’m on leave until next Tuesday, so I’ll likely turn to this next week. Thanks!

[ryan-roemer]

Confirmed. Working on a fix!

[ryan-roemer]

Fixed in webpack-dashboard@3.3.6. Thanks for repo @zicodeng !