---
title: MLCreateError.modifiedTrainingData
framework: createml
role: symbol
role_heading: Case
path: createml/mlcreateerror/modifiedtrainingdata
---

# MLCreateError.modifiedTrainingData

An error that indicates the training data is different from the data when you created the session.

## Declaration

```swift
case modifiedTrainingData
```

## See Also

### Identifying errors

- [MLCreateError.cancelled](createml/mlcreateerror/cancelled.md)
- [MLCreateError.incompatibleParameters(parameter:originalValue:newValue:)](createml/mlcreateerror/incompatibleparameters(parameter:originalvalue:newvalue:).md)
- [MLCreateError.io(reason:)](createml/mlcreateerror/io(reason:).md)
- [MLCreateError.type(reason:)](createml/mlcreateerror/type(reason:).md)
- [MLCreateError.generic(reason:)](createml/mlcreateerror/generic(reason:).md)
- [MLCreateErrorDomain](createml/mlcreateerrordomain.md)