debugging

Authentication errors stem from missing or invalid credentials. Check environment variables, token expiration, and Firebase configuration; review console logs for rejected requests and verify authorization headers in network tabs.

Hydration errors occur when server-rendered and client-rendered content mismatch. Inspect console output for mismatched DOM nodes, validate environment setup between server and client, and check for dynamic content rendering timing issues.

Firebase connection issues require verifying API keys, network configuration, and initialization settings. Check client-side console logs and server-side diagnostics for connection timeouts or authentication rejections.

Use a structured debugging checklist: verify endpoint URLs, inspect network logs for actual requests sent, confirm API availability, and cross-check environment configurations between development and deployment contexts.

Build failures require examining build logs and console output for error patterns. Apply logging templates to trace initialization steps, validate dependencies, and isolate where the build process fails.

Yes. Both contexts benefit from consistent patterns: check logs and console output, validate environment setup, apply diagnostic checklists, and reproduce errors with structured templates for reliable fixes.