Resolving OpenSSL Error in Node.js 20 for Next.js Projects

When upgrading your Node.js version to 20.x.x, you might encounter an OpenSSL error during the build process. This error can be resolved by using the legacy OpenSSL provider. Here’s a quick guide to fix this issue.

Steps to Resolve the Error

Update package.json Scripts:

Modify the build script in your

package.json

--openssl-legacy-provider

{
  "scripts": {
    "build": "node --openssl-legacy-provider ./node_modules/.bin/next build"
  }
}

Rebuild the Project:

After updating the

package.json

npm run build

Explanation

The

--openssl-legacy-provider

ERR_OSSL_EVP_UNSUPPORTED

By following these steps, you can successfully build your Next.js project with the latest Node.js version.