Weird Svelte SSR validation errors

[danielniccoli]

I get a bunch of weird

Svelte SSR validation error:
<header> is invalid inside <p>
<h1> is invalid inside <p>

However, I do not see any place where I have a header inside a p, or a h1 inside a p in my code.

I also checked the browser source code with ctrl-u (not through dev inspector) and there is also nothing of that sort visible.

Is there any way to identify exactly where this issue comes from? I have the slight suspicion that the message is a false positive.

[gterras]

Check that SK is up to date, else you can open dev tools > inspector > right click on body then "copy outer HTML", you should be able to paste your markup and check if something looks like your message. If not try to write a minimal reproduction and create an issue.

[hanszoons]

Delete your .svelte-kit folder and restart the dev server. I've had this issue before too, I couldn't find any error at all (because there was none).

[gterras]

In some rare cases deleting node_modules/.vite can also help.