---
title: GrammarCompilationFailure
product: Unity Editor
version: '7000.0'
latest_version: '7000.0'
status: This page documents version 7000.0. The latest version is 7000.0.
canonical: https://docs.unity.com/en-us/engine/7000.0/script-reference/unityengine/windows/speech/speecherror/grammarcompilationfailure
latest_url: https://docs.unity.com/en-us/engine/7000.0/script-reference/unityengine/windows/speech/speecherror/grammarcompilationfailure.md
last_updated: 2026-10-07
generated_at: 2026-11-11T21:37:58.176Z
locale: en-us
---

# GrammarCompilationFailure

> Speech recognition engine failed to compiled specified grammar.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.Windows.Speech](/engine/7000.0/script-reference/unityengine/windows/speech.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
GrammarCompilationFailure = 3
```

### Remarks

This error usually happens if an invalid grammar file is supplied to a grammar recognizer.