# Invalid_Library_or_Face

> Error code indicating failure to initialize the font engine library and / or successfully load a font face.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.TextCore.LowLevel](/engine/6000.7/script-reference/unityengine/textcore/lowlevel.md)
* **Assembly:** UnityEngine.TextCoreFontEngineModule

```csharp
Invalid_Library_or_Face = 41
```