[Fixed] Error: Page "/api/auth/[…nextauth]" is missing "generateStaticParams()" so it cannot be used with "output: export" con – Javascript

The Problem:

When building a Next.js project with a page that handles authentication using next-auth, an error message stating "Error: Page "/api/auth/[…nextauth]" is missing "generateStaticParams()" so it cannot be used with "output: export" config." appears. This issue arises due to the combination of using the output: export configuration and a page that does not have a generateStaticParams() function, which is necessary for static export with certain page types.

The Solutions:

Solution 1: Remove output: "export" from nextConfig file

If you are not building a static site, then you can remove the output: "export" configuration from the next.config.js file. This will enable the dynamic rendering of the /api/auth/[...nextauth] page, allowing it to be used for authentication purposes.

The authentication process is dynamic in nature and relies on server-side operations to verify user credentials and maintain session state. Therefore, it cannot be pre-rendered or exported as a static page.

By removing the output: "export" configuration, you are allowing Next.js to handle the rendering of the /api/auth/[...nextauth] page dynamically, ensuring that the authentication process functions correctly.

Here’s an updated version of your next.config.js file without the output: "export" configuration:

/** @type {import('next').NextConfig} */
const nextConfig = {}

module.exports = nextConfig

This modification should resolve the error you were encountering and allow the authentication process to work as intended.

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