How to fix npm ERR! Temporary failure, please try again in npm

Start with the simplest solution—npm recommends retrying as these are often transient failures:

npm install

Many temporary failures resolve on the next attempt without any configuration changes.

npm's cache may contain corrupted or stale data. Clear it and verify its integrity:

# Force clean the cache
npm cache clean --force

# Or verify cache integrity
npm cache verify

After clearing the cache, retry your npm command.

A corrupted node_modules directory or package-lock.json can cause npm to fail:

# Remove node_modules and lock file
rm -rf node_modules package-lock.json

# Reinstall dependencies
npm install

Corporate proxies or misconfigured proxy settings are a frequent cause. Check your current proxy settings:

# View current proxy settings
npm config get proxy
npm config get https-proxy

If you see proxy URLs configured and you're not behind a corporate proxy, remove them:

npm config rm proxy
npm config rm https-proxy

If you ARE behind a corporate proxy, configure npm to use it:

npm config set proxy http://proxy.company.com:8080
npm config set https-proxy http://proxy.company.com:8080

Test your connectivity and try an alternative network:

# Test DNS resolution
ping registry.npmjs.org
nslookup registry.npmjs.org

# Or from Node
node -e "require('dns').lookup('registry.npmjs.org', console.log)"

If DNS resolution fails, configure a different DNS server (like Google's 8.8.8.8). Try tethering to a mobile hotspot to test if the registry is reachable on other networks.

Outdated npm versions have known networking issues. Ensure you're running recent versions:

# Check your current versions
node --version
npm --version

# Update npm to the latest version
npm install -g npm@latest

After updating, clear your cache and try again:

npm cache clean --force
npm install