enter your package.json file. Inside this file in dependencies, you see a dependeny called next.

The use the following table to determine the new version:

npm install next@15.0.5   # for 15.0.x
npm install next@15.1.9   # for 15.1.x
npm install next@15.2.6   # for 15.2.x
npm install next@15.3.6   # for 15.3.x
npm install next@15.4.8   # for 15.4.x
npm install next@15.5.7   # for 15.5.x
npm install next@16.0.7   # for 16.0.x
 
npm install next@15.6.0-canary.58   # for 15.x canary releases
npm install next@16.1.0-canary.12   # for 16.x canary releases

Example: if you are currently on 15.2.4, then you look in the table and find the line:

npm install next@15.2.6   # for 15.2.x

Then you know, that the new version should be 15.2.6. So change it to the updated version and you are good to go

It is "latest"

no its not. If you are currentoly on 15.2.4 and you change it to latest, then instead of upgrading to 15.2.6, you would upgrade to 16.0.7. So you would do a major update and as you might know: that contains breaking changes.

The version is already 16.0.7

then write down 16.0.7 instead of latest

I got this error after changing the version:

add the following to your next.config.mjs:

import path from 'node:path';

/** @type {import('next').NextConfig} */
const nextConfig = {
    turbopack: {
        root: path.join(process.cwd(), '..'),
    },
};

export default nextConfig;

I assume your package.json is in /nextjs-dashboard?

I somehow fixed it. I did "npm install" and got an error saying:

And I ran npm audit fix --force. And it fixed it.