How can I prevent the "Page not found" error when implementing dynamic

Question

Hey there,

I’m working with a Next.js app and trying to implement dynamic routing with Static Site Generation (SSG). I’m using a dynamic route such as [slug].js to generate pages based on dynamic data, but I’m encountering a "Page not found" error when trying to access the generated pages.

I understand that Next.js uses the getStaticPaths function to determine which dynamic pages should be pre-rendered at build time, and getStaticProps for data fetching for each of those pages. However, despite following this process, I keep running into the "Page not found" error for some routes.

Here’s what I’ve already checked:

1. I have a [slug].js file in the pages folder.
2. I am using getStaticPaths to fetch a list of possible slug values (from a CMS or an API) to generate the pages.
3. I am using getStaticProps to fetch the data for each individual page based on the slug.

Even though I’ve set this up, some pages are not getting generated, and I keep seeing the "Page not found" error when trying to access them in the browser.

How can I ensure that all the dynamic pages are correctly generated to avoid this error? Are there any common issues with getStaticPaths or getStaticProps that I might be overlooking?

Things I’m unsure about:

• How should getStaticPaths be structured to fetch all possible paths properly?
• What could be causing Next.js to not pre-render certain dynamic pages even though the correct slugs are being returned from getStaticPaths?

I would appreciate any guidance on troubleshooting this issue and ensuring that all dynamic pages are pre-rendered successfully in Next.js.