error: option '--open <value>' argument missing

[chenxsan]

As per the request here webpack/webpack.js.org#4099 (comment).

Describe the bug

webpack serve --open throws an error:

error: option '--open <value>' argument missing

What is the current behavior?

To Reproduce

Steps to reproduce the behavior:

1. git clone https://github.com/chenxsan/webpack-demo
2. git checkout 8ffd9d229ce344fb4b595e4045aee7b074be16cc
3. npm install
4. npm start

Expected behavior

Screenshots

Please paste the results of webpack-cli info here, and mention other relevant information

Additional context

[snitin315]

Thanks for the report. I will look into it in near future.

[webharry]

I have the same problem.

My version information is：

"webpack": "^5.3.2",
"webpack-cli": "^4.1.0",
"webpack-dev-server": "^3.11.0"

[kkbdv]

I have the same probem

[snitin315]

Work in progress

[zero41120]

I was following the tutorial from the official website.

This --open argument bug happened before and there are some stack overflow questions and GitHub issues of the same bug.

If you just like me, trying to learn Webpack and don't care, providing the url allows you to continue:
webpack serve --open Chrome.exe

[snitin315]

This will be fixed with webpack-dev-server version 4.
https://github.com/webpack/webpack-dev-server/blob/9f1d02b909e22ece60dde2e57cbfce14feafde69/bin/cli-flags.js#L47

[cannandev]

Providing a url like @zero41120 said didn't work for me. But, webpack serve --open 'Google Chrome' works. Replace Google Chrome with your browser name.

[snitin315]

Yes, string functionality ( webpack --open 'browser-name') works fine.

[zero41120]

@cannandev @snitin315
Yes. Looks like the --open just opens whatever you provide, for example
webpack serve --open notepad.exe

I think it worked for me because that I'm on windows environment,
and it knows that http uses my default browser.
I will update my original comment.

[zzw890827]

Remove --open option can work if you do not know your browser name. I think it is better to correct it in the official tutorial.

[deleonio]

Please use the default browser by default.

webpack --open - thats it

[Amstrong]

I was following the tutorial from the official website.

This --open argument bug happened before and there are some stack overflow questions and GitHub issues of the same bug.

If you just like me, trying to learn Webpack and don't care, providing the url allows you to continue:
webpack serve --open Chrome.exe

this works for me, thanks you.