Cannot parse or format JSON files in VScode, or CLI about eslint-plugin-jsonc HOT 5 OPEN

Thank you for sharing the repository. I looked it up.
It seems that the parser configured with eslint-config-next is being used.
As you did, if you put plugin: jsonc/recommended-with-jsoncat the end of extends will cause the .json file to select the json parser.
If you don't want to change the order of extends, you need to add parser settings.
https://ota-meshi.github.io/eslint-plugin-jsonc/user-guide/#parser-configuration

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It's not on github yet, I'll push it within a few days when I've set up some things.

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Thanks for looking into it.

I think I'd rather add parser configuration. Messing with plugin order theoretically shouldn't matter, but in practice it sometimes does matter. It might be helpful for future users to add a paragraph about Next.js to the documentation describing how to prevent this issue.

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Thank you for posting issue.
I don't know the cause of your problem. Can you share your repository that can reproduce the problem?

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And here's a simplified reproduction repo:
https://github.com/thany/jsonc-error-repro

If I did it right, here's how to reproduce:

1. Checkout the repo
2. Run npm i on it
3. Install eslint globally: npm i -g eslint
4. Run it against the test.json: eslint test.json

Unfortunately, Next.js's built-in lint command doesn't test that file. Don't know why, and it doesn't matter. But that the only reason you'll need eslint available as a CLI command.

I did some further testing myself, and it seems removing next from the extend array makes the error go away. But I really need that one in there, because of the nature of the project.

Also when I move plugin:jsonc/recommended-with-jsonc to the end of the extend array, the error also goes away. But that too seems only a temporary workaround: let's say I wanted to include another plugin, which also needs to be last in the list. There can be only one last.

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