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Rate Limit Errors (429)

Error: Error code: 429 - too_many_requests Cause: Hitting API rate limits during rollout generation or LLM judging. Solution: Reduce concurrency in your @evaluation_test:

Database Errors

Error: sqlite3.OperationalError: disk I/O error or peewee.OperationalError Solution: Delete the corrupted database file:
The database will be recreated automatically on next run.

Model Not Found

Error: ValueError: Model 'your-model' not found Solution: Use correct LiteLLM format:

Import Errors

Error: ImportError: Langfuse not installed Solution: Install platform dependencies:

Authentication Errors

Error: AuthenticationError: Invalid API key Solution: Set environment variables:

No Data Found

Error: ❌ No evaluation rows provided Solution: Double check your adapter is returning the rows. You may want to debug by adding print statements around the number of rows being returned, as well as the content of the rows.

Fireworks Persistence Warning

Warning: ❌ Experiment past-story-29: No Fireworks account ID found Cause: Missing FIREWORKS_ACCOUNT_ID environment variable. Solution:
  • To persist results to Fireworks (easier sharing): export FIREWORKS_ACCOUNT_ID="your_account_id"
  • To use locally only: Ignore this warning - everything still works, results just stay local

UI Not Updating

Problem: Local UI at http://localhost:8000 not showing new results Solution: Restart the EP logs server:

Getting Help

For other issues, join the Discord for support with a Fireworks engineer.