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Fixing Git Authentication Failed in VS Code - How to Fix npm install Permission Denied with nvm-How to Clear DNS Cache After Changing DNS Servers

Updated 2026-07-28 15:47:18macos-help
Fixing Git Authentication Failed in VS Code - How to Fix npm install Permission Denied with nvm-How to Clear DNS Cache After Changing DNS Servers
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.