I just upgraded my Node.js installation to version 9.1.0 and I’m running into issues with npm. Every time I try to run any npm command, I get this warning message:
npm WARN npm npm does not support Node.js v9.1.0
This is really frustrating because npm was working perfectly fine before the Node upgrade. I thought npm was supposed to be compatible with newer Node versions automatically. Has anyone else encountered this compatibility issue? I need to get my package manager working again so I can continue with my project development. What’s the best way to resolve this Node and npm version mismatch?
Same thing happened to me. The warning’s just cosmetic - npm works fine even with that message. I ignored it and everything ran normally. If it really bugs you, try npm cache clean --force before reinstalling npm globally. Node 9.1.0 is bleeding edge, so these compatibility warnings are normal until npm updates their version checks.
This warning pops up when npm hasn’t caught up to recognize newer Node.js versions yet. I hit the same issue after upgrading Node before npm officially supported it. It’s usually just a warning; npm should work fine despite the message. Try updating npm with npm install -g npm@latest, which often resolves the compatibility check. If that doesn’t help, you may need to wait for an npm update that supports Node 9.1.0, or consider using a Node version manager like nvm to switch between versions for different projects.
Had this exact problem with Node 9.1.0. npm’s version checking gets too strict with newer Node releases. I fixed it by updating npm manually from the Node.js website installer instead of using npm itself - the bundled version always lags behind. You can also grab the latest npm tarball and install it directly. Just remember Node 9.x was an odd release, so it’s unstable/experimental. I’d downgrade to Node 8.x LTS for production - way better ecosystem support and fewer compatibility issues.