---
title: ConcatenationError.mismatchedShapes
framework: createmlcomponents
role: symbol
role_heading: Case
path: createmlcomponents/concatenationerror/mismatchedshapes
---

# ConcatenationError.mismatchedShapes

Shaped arrays across columns have mismatched shapes and can’t be concatenated.

## Declaration

```swift
case mismatchedShapes
```

## See Also

### Analyzing the error

- [ConcatenationError.nonUniformShapes(columnName:)](createmlcomponents/concatenationerror/nonuniformshapes(columnname:).md)