"npm run" fails with ERR_OSSL_EVP_UNSUPPORTED
Stefan Izdrail
Founder & Senior Architect · 2026-06-29
"npm run" fails with ERR_OSSL_EVP_UNSUPPORTED: A Comprehensive Guide for Laravel & Vue Developers
Introduction
The error "ERR_OSSL_EVP_UNSUPPORTED" is a common issue that may arise during the installation or execution of Node.js projects, particularly Laravel and Vue applications. It occurs due to incompatibility between your project's dependencies, node version, or other libraries. In this blog post, we will explore the possible causes and solutions for this error.
Possible Causes
1. Dependency Incompatibilities: This error could arise when there is a conflict between two or more dependencies. For instance, if your project uses OpenSSL-dependent modules such as Node-SSH or Crypto-js, these libraries might have different requirements regarding which version of OpenSSL they support.
2. Node Version Conflict: The issue may also be caused by using an incompatible combination of node versions and packages. For example, you could encounter this error if your npm package manager is not up to date or you're running older versions of npm and node.js on your system.
3. Outdated Webpack Version: If you're using an outdated version of webpack (for instance, webpack 4.x), it may cause issues due to incompatibilities with newer OpenSSL libraries that your dependencies might rely on.
Possible Solutions for Dependency Incompatibilities
1. Update Node.js: Make sure you're using the latest stable version of node.js. At the time of writing, the current latest stable release is v17.3.0. Visit the official website (https://nodejs.org/en/) for download links and installation instructions.
2. Update npm: You should also ensure that you're running the latest version of npm. Currently, it stands at version 8.3.0. Run 'npm --version' in your terminal to check your current npm version. If it is outdated, update npm using 'sudo npm install -g npm'. This will update both npm and node.js simultaneously.
3. Review dependency versions: Examine the dependencies listed in your package.json file. Check if any of them have known compatibility issues with OpenSSL or other modules. If there are any, consider updating those specific dependencies to their latest stable releases using 'npm install --save-dev @latest'.
Possible Solutions for Node Version Conflicts
1. Update npm and node.js to the latest versions.
2. For older projects that require a specific version of npm, use nvm (https://github.com/nvm-sh/nvm) or another version manager to specify an exact environment. This will isolate your project from system-wide dependencies and help in resolving conflicts.
3. In case of dependency issues with OpenSSL, update the relevant dependencies using the steps mentioned above.
Possible Solutions for Outdated Webpack Version
1. Upgrade webpack to the latest version available (currently, 5.x). Follow installation instructions on their website (https://webpack.js.org/guides/migrating/) or consult a tutorial for specific configuration details.
2. If updating webpack is not an option due to stability reasons or compatibility issues with other dependencies, try downgrading your node-sass and sass modules to older versions that are compatible with your current webpack installation. Consult their documentation (https://www.npmjs.com/package/node-sass and https://sass-lang.com/installation) for specific version support information.
Conclusion
The ERR_OSSL_EVP_UNSUPPORTED error is a common problem experienced by Laravel and Vue developers, but it can be easily resolved by identifying its cause and applying appropriate solutions. Stay up to date with your dependencies, node versions, and webpack compatibility for seamless installation and execution of your projects. Always back up your project before attempting any configuration changes and consult resources from the official package or module documentation whenever necessary.
Remember that you can always reach out to us at https://laravelcompany.com/ for any Laravel-related technical assistance, including troubleshooting open source software issues like this one.