onBeforePrerenderStart called twice, leading to duplicate url error

[sebastianeggers]

Description

I am experimenting with vike and ssr, and have come upon an error.

My goal was to create a page with index and id, and have it pre-rendered.

These are my first steps with vike, so it is easily possible that I am overlooking something obvious.

What I have done:

• Created a new vike project using npm create vike@latest --- --react --eslint
• Removed the pages for todo and star-wars
• Created new page called pokemon with @id and index
• Made sure that the page works in dev mode
• Added prerender: true to pages/+config.ts
• Added a +onBeforePrerenderStart.ts file inside the folder of my page, it reads an api, and returns an array of url strings
• Run npm run build

What I expect:

• The pages are pre-rendered.

What I see:

• I receive the error URL /pokemon/bulbasaur provided twice by the onBeforePrerenderStart() hook (/pages/pokemon/+onBeforePrerenderStart.ts). Make sure to provide the URL only once instead.
• By adding logs, I see that the onBeforePrerenderStart hook is executed twice, in parallel (function starts, function starts, function ends, function ends). I have made sure that the returned url array does not contain duplicates.
• Added .server or .shared makes no difference.
• Adding .client leads to the page not being pre-rendered

[sebastianeggers]

Nevermind, it was my mistake.

I did put the +onBeforePrerenderStart.ts into the folder that contains both the "@ id" and the "index" folder, causing it to be run twice, due to configuration inheritence (I assume).

After moving it into the "index" folder it works as expected.