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Fix 'npm command not found' Error in Ubuntu Terminal - How to Fix ERR_TUNNEL_CONNECTION_FAILED in Chrome-VSCode Terminal Not Visible: How to Fix

Updated 2026-06-13 15:15:50developer-tools
Fix 'npm command not found' Error in Ubuntu Terminal - How to Fix ERR_TUNNEL_CONNECTION_FAILED in Chrome-VSCode Terminal Not Visible: How to Fix
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.