---
title: "Error Handling"
manual: "TypoGraph"
permalink: "https://docs.typo3.org/permalink/digicademy/typograph:error-handling"
source: "error-handling/index.rst"
rendered: "2026-09-18T09:10:56+00:00"
---

# Error Handling {#error-handling}

TypoGraph logs helpful warnings and errors when relations are misconfigured:

-   **Missing configuration**: "Relation Taxonomy.disciplines is not configured in the site configuration"
-   **Missing targetType**: "Relation Taxonomy.disciplines is missing targetType configuration"
-   **Unmapped target**: "Target type Discipline is not mapped to a table in tableMapping"
-   **Missing MM table**: "Relation Expert.disciplines with storageType=mmTable is missing mmTable configuration"
-   **Missing foreign key field**: "Relation Taxonomy.disciplines with storageType=foreignKey is missing foreignKeyField configuration"

Check your TYPO3 logs if relations return `null` or empty arrays unexpectedly.