Webpack.js.org: "Property 'mode' is not allowed" warning shows in webpack config

[Pixelatex]

When calling webpack using the node api like so:

webpack(webpackConfig, (error, stats) => { // Do stuff });

I can't find any documentation on how I'm supposed to pass along the mode env (--mode) that has been added in V4.

[montogeek]

It is part of the webpackConfig object

[Pixelatex]

Yeah I just now figured that out, what confused me was that setting mode: '..' in the config will throw a warning saying that webpack doesn't allow this. I assume this hasn't been updated?

[montogeek]

Could you please post your webpack version and warning message?

[Pixelatex]

"webpack": "^4.1.1",

[Pixelatex]

the link to 'webpack Options schema' also returns a 404 :)

[montogeek]

What is that? We don't have control over IDE Integrations.
But guessing I would say that is IntelliJ https://www.jetbrains.com/help/idea/webpack.html and it is using https://github.com/webpack-contrib/schema-utils to validate webpack options, in that case, Could you please send a PR to https://github.com/webpack-contrib/schema-utils adding that new option?

Thanks!

[montogeek]

I explored Jetbrains issue tracker and found https://youtrack.jetbrains.com/issue/WEB-14019#u=1497141261503, it never mentions exactly what is used :/

[montogeek]

@Pixelatex What is the link?

[Pixelatex]

https://github.com/webpack/webpack/blob/master/schemas/webpackOptionsSchema.json

[Pixelatex]

I took a look at the node modules folder of webpack, in 'schemas' the WebpackOptions.json doesn't have 'mode'

[montogeek]

Yep, just found it https://github.com/webpack/webpack/blob/master/schemas/WebpackOptions.json, the current file have mode option documented, so, it is an error from Jetbrains.

That file was renamed on https://github.com/webpack/webpack/commit/cdd593b8472526ebb46edb85f43e6f414240f122#diff-03af1a9344cf93838ad925ff61de02aa (Nov 11, 2017), maybe you have an outdated version of your editor?

[Pixelatex]

latest version of webstorm but I guess I might have to make a bug report on their end then. Bit strange that the validation seems to be using an older version.

[montogeek]

Are you sure you have the latest version of webpack installed, that file have mode option on my computer using webpack 4.1.1

[Pixelatex]

Yeah, it's the latest one but it seems like I misread, mode is indeed in there.

[montogeek]

So it seems that they are using the wrong file to validate the schema, maybe from a global installation?
Check your IDE Webpack Settings for any related option that could affect it.

[denofevil]

IntelliJ-based products are using bundled copy of the schema. 2017.3.* and lower use schema from webpack 2 which is missing that attribute. 2018.1 will use proper schema depending on the webpack version (WEB-31469).

[Pixelatex]

So many things that won't be fixed until 2018.1, hope they release it soon

[denofevil]

@Pixelatex we're releasing Public Preview this week with the full release around the end of month.

[Pixelatex]

@denofevil didn't realise you were part of intelij :p thanks for that info. Been waiting a while for some things!