---
title: AVAudioEngineManualRenderingError.initialized
framework: avfaudio
role: symbol
role_heading: Case
path: avfaudio/avaudioenginemanualrenderingerror/initialized
---

# AVAudioEngineManualRenderingError.initialized

An operation that the system can’t perform because the engine is still running.

## Declaration

```swift
case initialized
```

## See Also

### Manual Rendering Errors

- [AVAudioEngineManualRenderingError.invalidMode](avfaudio/avaudioenginemanualrenderingerror/invalidmode.md)
- [AVAudioEngineManualRenderingError.notRunning](avfaudio/avaudioenginemanualrenderingerror/notrunning.md)