---
title: SFSpeechError.Code.missingParameter
framework: speech
role: symbol
role_heading: Case
path: speech/sfspeecherror/code/missingparameter
---

# SFSpeechError.Code.missingParameter

A required parameter is missing/nil.

## Declaration

```swift
case missingParameter
```

## See Also

### Custom language model errors

- [SFSpeechError.Code.malformedSupplementalModel](speech/sfspeecherror/code/malformedsupplementalmodel.md)
- [SFSpeechError.Code.undefinedTemplateClassName](speech/sfspeecherror/code/undefinedtemplateclassname.md)