fix: resolve dependency issues

[merceyz]

What's the problem this PR addresses?

The project created by create-react-app@5.0.0 has dependency issues.

How did you fix it?

• Add @babel/plugin-proposal-private-property-in-object as a dependency to babel-preset-react-app
• Add @types/testing-library__jest-dom to the typescript template to fix typechecking under strict dependency environments
• require.resolve the PostCSS plugins
• require.resolve the Jest watch plugins
• Add typescript as an optional peer dependency to eslint-config-react-app

[giulianf]

is there any deadline for this version 5.0.1?

[AndyDyer]

+1

[aramis-it]

How to use it before release?

[blu3r4y]

How to use it before release?

Add the missing dependency in your .yarnrc.yml file, see the comment by @llimos here: #11793 (comment)

Additionally, I did yarn add -D @types/testing-library__jest-dom to also fix typechecking errors.

[jakeklassen]

Anyone know how I can use this before release with pnpm? I am seeing errors with @babel/plugin-proposal-private-property-in-object

[await-ovo]

We should also need to specify the path to the postcss:

{// Options for PostCSS as we reference these options twice// Adds vendor prefixing based on your specified browser support in// package.jsonloader: require.resolve('postcss-loader'),implementation: require.resolve("postcss"),options: {postcssOptions: {

[merceyz]

That's not necessary, postcss-loader declares postcss as a peer dependency so it will get it from the parent (react-scripts) on its own.

[await-ovo]

Thanks for your reply, the problem I'm having is that under node_modules is postcss v7, but plugins like postcss-flexbugs-fixes depend on postcss v8, which causes errors when compiling.

So I think it might be better to specify implementation.

[indutny]

Could this be merged?

[hellenfc]

Issue still existing, can this be merged?

[MuyangAmigo]

Can this fix be merged?

[briandiaz]

News on this?

[duereg]

I'm pretty sure this project is no longer maintained

[giulianf]

I'm pretty sure this project is no longer maintained

I think you right.
Maybe there is an alternative? It's worrying to see such project not followed