---
title: kCMClockError_MissingRequiredParameter
framework: coremedia
role: symbol
role_heading: Global Variable
path: coremedia/kcmclockerror_missingrequiredparameter
---

# kCMClockError_MissingRequiredParameter

A clock error that indicates a parameter is missing.

## Declaration

```swift
var kCMClockError_MissingRequiredParameter: OSStatus { get }
```

## See Also

### Constants

- [kCMClockError_InvalidParameter](coremedia/kcmclockerror_invalidparameter.md)
- [kCMClockError_AllocationFailed](coremedia/kcmclockerror_allocationfailed.md)
- [kCMClockError_UnsupportedOperation](coremedia/kcmclockerror_unsupportedoperation.md)