My site runs fine with "npm run dev" but the dist folder creation fails when I do an "npm run build". Shouldn't it run fine in build if it runs fine in dev?
14:28:19 ▶ /articles/[slug]
14:28:19 [ERROR] [build] Failed to call getStaticPaths for /articles/[slug]
[GetStaticPathsRequired] getStaticPaths() function is required for dynamic routes.
#Runs fine in npm run dev but fails in npm run build
fading fulcrum
steel pikeBOT
Hi @fading fulcrum. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
The error you’re seeing—[GetStaticPathsRequired] getStaticPaths() function is required for dynamic routes—means that in static build mode, Astro needs to know all possible routes at build time for any dynamic route (like /articles/[slug]). While npm run dev works by resolving routes on demand, npm run build (static mode) requires you to export a getStaticPaths() function from your dynamic route file to generate all the necessary pages ahead of time.
To fix this, ensure that your src/pages/articles/[slug].astro (or similar dynamic route file) exports a getStaticPaths() function that returns an array of all possible slugs. For example:
---
// Example: src/pages/articles/[slug].astro
export async function getStaticPaths() {
// Fetch your articles here and return an array of objects:
return [
{ params: { slug: 'first-article' } },
{ params: { slug: 'second-article' } },
// ...more articles
];
}
---
Without this function, Astro cannot generate the static pages for each article, which is why the build fails, even though development mode works fine. This is a common requirement in Astro’s static site generation workflow GetStaticPathsRequired error docs.