Environment

• Operating System: Darwin
• Node Version: v22.20.0
• Nuxt Version: 4.1.2
• CLI Version: 3.28.0
• Nitro Version: 2.12.6
• Package Manager: yarn@4.11.0
• Builder: -
• User Config: [...]
• Runtime Modules: @nuxt/eslint@1.15.1
• Build Modules: -

Package

None

Reproduction

I can provide a reproduction link if my description is not sufficient.

Describe the bug

This error occurs when the nuxt eslint module is run for the first time with checker option enabled after a fresh package installation:

• rm -rf node_modules
• yarn install
• nuxt prepare
• nuxt dev

The dev server is started, and now the eslint module writes the ./.nuxt/eslint.config.mjs once and then again in the builder:generateApp hook, but in that hook it does not wait for the config to be written, so the checker is already run before that file has any contents (race condition):

ERROR Pre-transform error: The requested module './.nuxt/eslint.config.mjs' does not provide an export named 'withNuxt' Plugin: vite:eslint2 File: [...]

On the next nuxt dev run the error does not occur anymore.

My options in nuxt config:

    eslint: {
        checker: { lintInWorker: false, lintOnStart: false },
        config: { standalone: false },
    },

And I have a flat config eslint.config.mjs in project root with the import mentioned in the docs:

import withNuxt from './.nuxt/eslint.config.mjs'

I will provide a PR with a minimal change that waits for the config to be written in the hook.

Additional context

No response

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