Issue: Unable to reach essential Node.js modules

After attempting to deploy Next.js on Cloudflare Pages, I encountered the following error: Error: Could not access built-in Node.js modules. It is recommended to ensure that your Cloudflare Pages project has the 'nodejs_compat' compatibility flag set.

I have searched through various forums for a solution but unfortunately, have not been able to find one yet.

Answer №1

Recently experienced this issue with my Next.js project. After successfully building and deploying, an error appeared on my project URL:

Error: Built-in Node.js modules inaccessible. Ensure 'nodejs_compat' compatibility flag is enabled in your Cloudflare Pages project.

Enabled the nodejs_compat flag and tried deploying again - success!

However, I found the documentation to be a bit ambiguous on how to add the "nodejs_compat" flag from the Cloudflare dashboard -> Workers & Pages -> Your Pages project -> Settings -> Functions -> Compatibility Flags. It only shows an example of adding it in wrangler.toml format:

compatibility_flags = [ "nodejs_compat" ]

If you wish to add the "nodejs_compat" flag from the Cloudflare dashboard, simply enter the flag as plain text: nodejs_compat. No quotes, brackets, or additional words needed.

Answer №2

If you're looking for information on compatibility flags, head over to this link

In order to activate Node.js APIs, you will need to include

compatibility_flags = [ "nodejs_compat" ]

in your wrangler.toml file.

Alternatively, you can specify compatibility flags in your Cloudflare dashboard by following these instructions:

  • Login to the Cloudflare dashboard and choose your account.
  • Go to Workers & Pages then click on your Pages project.
  • Select Settings > Functions > Compatibility Flags.
  • Customize your Production and Preview compatibility flags as required.

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