Eslint 9.0.0 does not work

[gabriel-logan]

In several projects I spent hours trying to find the problem and saw that it was the eslint of the new version, simply by default npm downloads the latest version that is on NPM, then it downloads version 9.0.0 and this version may even be working, but then it is incompatible with all previous eslint configurations, etc., almost every parser or config uses old versions of eslint, SOLUTION: whenever I downgrade from 9.0.0 to eslint@8.57.0 everything works again.

[Rec0iL99]

Hi @gabriel-logan, by default v9.0.0 uses the new flat config system and the .eslintrc config system is now deprecated. If you want to continue using v9.0.0 with the .eslintrc config, then you must set the environment variable ESLINT_USE_FLAT_CONFIG to false.

[gabriel-logan]

Thanks.

Its the .dev file ?