Error Hh604: Error Running JSON-Rpc Server: Error:0308010C:Digital Envelope Routines::Unsupported

Error message error:0308010C:digital envelope routines::unsupported

In your package.json: change this line

"start": "react-scripts start"

to

"start": "react-scripts --openssl-legacy-provider start"

Node.js 17.0.1 Gatsby error - digital envelope routines::unsupported ... ERR_OSSL_EVP_UNSUPPORTED

Gatsby must be using an algorithm or key size which is no longer allowed by default with OpenSSL 3.0.

UPDATE ⚠️

This is most likely a webpack issue - https://github.com/webpack/webpack/issues/14532

They have since released a fix in version 5.61.0 - https://github.com/webpack/webpack/releases/tag/v5.61.0 - so upgrading webpack should address the issue as well

A member of the webpack team has stated they do not plan to backport the fix to webpack 4, so if you are on webpack 4 you may need to look to upgrading to webpack 5 first.

From Node.js 17's announcement post:

If you hit an ERR_OSSL_EVP_UNSUPPORTED error in your application with Node.js 17, it’s likely that your application or a module you’re using is attempting to use an algorithm or key size which is no longer allowed by default with OpenSSL 3.0. A new command-line option, --openssl-legacy-provider, has been added to revert to the legacy provider as a temporary workaround for these tightened restrictions.

Running this on the terminal might look like:

node --openssl-legacy-provider ./node_modules/.bin/gatsby build

You can also pass this in via the NODE_OPTIONS environment variable.

So if you'd like to continue using the NPM script, you can change the build script to:

// package.json
{
  "scripts": {
    "build": "export NODE_OPTIONS=--openssl-legacy-provider; gatsby build"
  }
}

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