Skip to content
FLAVIO COPES
flaviocopes.com
2026

Fix the 'Parse failure: Unterminated string constant' error

By Flavio Copes

How to fix the Parse failure Unterminated string constant error in Astro on Windows by renaming a parent folder with odd characters to plain ASCII.

~~~

I ran into this error with a student of mine, running Astro on Windows (could not replicate on macOS), after running npm run dev.

After much 🤔 we solved by renaming the parent folder, which apparently had a strange character, perhaps non-ASCII.

If you run into this problem, try renaming the folder you are running (or perhaps a parent folder in the path) to just ASCII text, like “test”

~~~

Related posts about js: