# Common errors

Discover the possible causes and solutions for common issues.

This page catalogs issues you may encounter when using the Evaluation API.

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Use the summary below to quickly jump to a specific topic:

- [Invalid query](/reference/api/service/evaluation/error/invalid-query): Resolve invalid query errors.
- [Evaluation failed](/reference/api/service/evaluation/error/evaluation-failed): Resolve evaluation failed errors.
- [Unserializable result](/reference/api/service/evaluation/error/unserializable-result): Resolve unserializable result errors.