Unmasking the Silent Killer: Node.js Version Mismatch in Production Deployments

This article reveals why Node.js applications work flawlessly on development machines but mysteriously fail on production VPS servers. The hidden culprit is often a version mismatch between PM2 and the Node.js interpreter, a common problem when using NVM. Understanding this environment discrepancy is critical for eliminating costly debugging hours and ensuring reliable deployments.