This error occurs when npm outdated can't fetch package information from the registry. Usually caused by network issues, corrupted cache, or registry configuration problems.
The EOUTDATED error means npm couldn't check for outdated packages. The `npm outdated` command needs to contact the registry to compare your installed versions against available versions. This error typically indicates: - Network connectivity issues - npm registry is temporarily unavailable - Corrupted npm cache - Authentication issues with private registry - Corrupted package-lock.json
Remove potentially corrupted cache data:
npm cache clean --force
npm outdatedVerify you can reach the npm registry:
npm pingIf this fails, check your network connection or proxy settings.
Use the latest npm version:
npm install -g npm@latest
npm outdatedCreate a fresh lock file:
rm package-lock.json
npm install --package-lock-only
npm outdatedVerify your registry setting:
npm config get registryShould show https://registry.npmjs.org/ for public packages. Reset if needed:
npm config set registry https://registry.npmjs.org/If using private packages:
npm login
npm outdatedUnderstanding npm outdated output: When working, it shows:
- Current: version installed locally
- Wanted: max version matching package.json range
- Latest: newest version available
Proxy configuration: Behind corporate proxy:
npm config set proxy http://proxy.company.com:8080
npm config set https-proxy http://proxy.company.com:8080Workspace/monorepo issues: In npm workspaces, npm outdated may show 404 errors for local packages—this is expected and can be ignored.
Alternative tools: If npm outdated keeps failing:
- npx npm-check-updates - more detailed update checking
- npx depcheck - finds unused dependencies
npm ERR! code E401 npm ERR! 401 Unauthorized - Token has expired
Token has expired - npm authentication failure
npm ERR! code ENOAUDIT npm ERR! Audit endpoint not supported
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npm ERR! code EBADDEVENGINES npm ERR! devEngines.runtime incompatible with current node version
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npm ERR! code EAI_NODATA npm ERR! errno EAI_NODATA npm ERR! getaddrinfo EAI_NODATA registry.npmjs.org
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npm ERR! code ETOOMANYARGS npm ERR! Too many arguments
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