Troubleshooting and FAQ
This page addresses frequently asked questions and common troubleshooting topics for Langfuse Evaluation.
If you don't find a solution to your issue here, try using Ask AI for instant answers. For bug reports, please open a ticket on GitHub Issues. For general questions or support, visit our support page.
FAQ
- How do I upgrade my trace-level evaluators to observation-level evaluators?
- How do I work with observations in Langfuse Fast Preview (Langfuse v4)?
- How to create and manage Score Configs in Langfuse?
- How to evaluate sessions/conversations?
- How to retrieve experiment scores via UI or API/SDK?
- How to use Langfuse-hosted Evaluators on Dataset Runs?
- I have setup Langfuse, but I do not see any traces in the dashboard. How to solve this?
- What are scores in Langfuse and when should I use them?
- Why do observation lookups with the v3 SDK return 404?
- Why is my observation-level evaluator not executing?
GitHub Discussions
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