npm WARN purgecss-webpack-plugin@1.2.0 requires a peer of webpack@^4.11.1 but none is installed. You must install peer dependencies yourself.

[sinanerdem]

Describe the bug
I believe this plugin supports webpack 3 which I am using (webpack 3.12.0)
Whenever I install a new npm module, there are two warnings:

npm WARN purgecss-webpack-plugin@1.2.0 requires a peer of webpack@^4.11.1 but none is installed. You must install peer dependencies yourself.
npm WARN purgecss-webpack-plugin@1.2.0 requires a peer of webpack-cli@^3.0.2 but none is installed. You must install peer dependencies yourself.

To Reproduce
Steps to reproduce the behavior:

Install any other npm module.

Expected behavior
Nothing

[jsnanigans]

Thanks for reporting this, the webpack warning is easily fixed, however i'm not sure that you can define a optional peer-dependency - webpack-cli.

but otherwise its working for you right?

Ill try to fix these warnings when I have some time.

[sinanerdem]

Thank you. It doesn't effect the operation of the plugin. It was just a bit confusing.

[sebastiandedeyne]

Is Webpack 3 still supported? Doesn't the peerDependency need to be changed to something like ^3 || ^4?

[jsnanigans]

Thanks for the suggestion, I changed the webpack peerDependency however I don't think we can get rid of the warning for webpack-cli

[calebeby]

@jsnanigans Why does this package even have a peerDependency on webpack-cli at all? This package can work with the webpack api without the CLI, right? Can I send a PR to remove the peerDependency on webpack-cli?

[jsnanigans]

@calebeby you have a good point, the only reason its there is for the tests, so It should be enough for it to be in the devDependencies.
A PR would be very welcome, thanks.