---
title: "CompatibilityError.unsupportedRevision(_:)"
framework: createmlcomponents
role: symbol
role_heading: Case
path: "createmlcomponents/compatibilityerror/unsupportedrevision(_:)"
---

# CompatibilityError.unsupportedRevision(_:)

An error that indicates that the revision is not supported.

## Declaration

```swift
case unsupportedRevision(Int)
```