What version of starlight are you using?

0.41.0

What version of astro are you using?

7.0.2

What package manager are you using?

npm

What operating system are you using?

Linux on WSL

What browser are you using?

Edge

Describe the Bug

I got the error after running @astrojs/upgrade locally but I tried the template and it has the same problem, so I just pasted the template link as an MRE.

Link to Minimal Reproducible Example

https://astro.new/starlight-basics?on=stackblitz

Participation

• I am willing to submit a pull request for this issue.