MDX: Unexpected character , (U+002C) in name, expected a name character such as letters, digits, $, or _; whitespace before attributes; or the end of the tag

Nextjs

React

MDX

Created: 18 December, 2024

Backstory

While working on an MDX-based project, syntax errors were causing rendering issues, and the MDX files failed to parse correctly. These errors were difficult to identify due to the lack of detailed error messages during development.

Busted! 🎆

To fix this, I wrapped the problematic in an inline code Open the MDX file in MDX Playground.

The Editor is smart enough to Identify the syntax errors by highlighting (e.g., unclosed tags, invalid JSX).

Fix the issues based on the feedback.

Verify by reloading the project to ensure proper rendering block.

bj.dev logo

Bolaji Bolajoko © 2025

Powered By React, Nextjs, and Vercel