---
title: MTL4CommandQueueError.Code.notPermitted
framework: metal
role: symbol
role_heading: Case
path: metal/mtl4commandqueueerror-swift.struct/code/notpermitted
---

# MTL4CommandQueueError.Code.notPermitted

Indicates a process doesn’t have access to a GPU device.

## Declaration

```swift
case notPermitted
```