Unknown error when setting up NextJS config

[Janealter]

Unknown error when setting up NextJS config:

Injecting property=output and value=export in:
import bundleAnalyzer from '@next/bundle-analyzer';
const withBundleAnalyzer = bundleAnalyzer({
  enabled: process.env.ANALYZE === 'true',
});
export default withBundleAnalyzer({
  reactStrictMode: false,
  eslint: {
    ignoreDuringBuilds: true,
  },
  experimental: {
    optimizePackageImports: ['@mantine/core', '@mantine/hooks'],
  },
});
Error: TypeError: error must be an instance of Error

[Janealter]

As I tested, this is because my config contains

import bundleAnalyzer from '@next/bundle-analyzer';

const withBundleAnalyzer = bundleAnalyzer({
  enabled: process.env.ANALYZE === 'true',
});

[Janealter]

I think this PR solves the issue - #161

[rajatsandeepsen]

I saw a similar issue in Nextjs Repo

Then made a complex work around in workspace yml to solve this issue

Like

1. reset the next.config file to default with zero configurations
2. then run the Setup Pages (it will add some important info like basePath to config)
3. then edit the next.config file to merge your configuration and configuration from setup pages

Example