Invalid flat config

[swachter]

Configuring the plugin by

// eslint.config.js
import vitest from 'eslint-plugin-vitest';

export default [
  vitest.configs.recommended
];

results in the following error:

ESLint: 8.56.0


A config object has a "plugins" key defined as an array of strings.

Flat config requires "plugins" to be an object in this form:

    {
        plugins: {
            vitest: pluginObject
        }
    }

I think the issue is caused by the createConfig function. A possible workaround it to tweak the returned config object in the following way:

export default [
  { ...vitest.configs.recommended, plugins: { vitest } }
];

[tobiasdiez]

Yes, the plugin needs some changes to work with flat configs, see https://eslint.org/docs/latest/extend/plugin-migration-flat-config#migrating-configs-for-flat-config.

[Stanzilla]

rules: {
      ...vitest.configs.recommended.rules,
    },

this part errors on 0.4.2-beta.1, Configuration for rule "plugins" is invalid. Expected severity of "off", 0, "warn", 1, "error", or 2.

You passed '"vitest"'.