Go to the official npm releases or the Node.js dist folder (choose the version matching your Node install) and download npm-v6.14.13.zip .
Installing a slightly newer LTS version, such as Node v16 or Node v20, which uses more modern npm versions.
The remote server may be providing a corrupt or incomplete file, or your connection may be timing out during the download. Go to the official npm releases or the Node
The "rolling back" part of the error means nvm has successfully installed the Node.js executable but failed to attach the npm package manager, leaving you with a broken environment where node -v works but npm -v does not. Common Causes
If the automated download fails, you can manually place the required files into your NVM directory. The "rolling back" part of the error means
If the error occurs during a standard npm install (rather than an nvm install ), clear the cache and verify your registry: NVM installation error on Windows. Cannot find the npm file
When you see the error message you are likely using nvm-windows to install an older version of Node.js (typically Node v14.x.x). This failure happens because the automated process that fetches the matching npm zip file from the Node.js distribution servers encounters a network timeout, a corrupted file, or a firewall block. Cannot find the npm file When you see
Sometimes specific combinations of Node and npm are prone to errors. Users have reported success by: