Issues with NSBundle failed, VTParavirtualization, IOServiceMatchingFailed, AppleM2ScalerParavirtDriver

Question

Created Jul ’24

Replies 3

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I'm building an app in Apple Virtualization but I can no longer generate images after updating to macOS Sequoia. It's a simple function that will create thumbnails in either HEIF or JPEG, but neither work now.

I get these warnings every time:

CGImageProviderGetContentHeadroom: Bad headroom value 0.000000 for SDR, returning 1.0

NSBundle file:///System/Library/PrivateFrameworks/MetalTools.framework/ principal class is nil because all fallbacks have failed

IOServiceMatchingfailed for: AppleM2ScalerParavirtDriver <<<< VTParavirtualization >>>> VTParavirtualizationReplyClerkWaitForReply signalled err=-19092 (kVTParavirtualizationTimeoutErr) (timeout waiting for pending reply) at VTParavirtualization. c: 3804

writeImageAtIndex:1077: *** CMPhotoCompressionSessionAddImage: err = unknown error [-19092] (codec: 'hvc1')

The operation couldn't be completed. (CINonLocalizedDescriptionKey error 3.)

Will this be resolved in Xcode 16 or macOS Sequoia?

Boost

Answer 1

DTS Engineer OP

Apple

Jul ’24

I'm building an app in Apple Virtualization

Can you clarify what you mean by this? Does it mean you’re running Xcode within a virtual machine? If so, are you seeing this problem at build time? Or when you go to run your build app?

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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Answer 2

universal-0 OP

Jul ’24

Yes, I am using Xcode 16 beta 3 on macOS Sequoia beta 3 on both host and guest in the VM. The issue is present when I ran my app in UTM or Apple’s virtualization sample project. I see this issue appear when I run my app, specially whenever it creates thumbnails.

It happens when I use writeHEIFRepresentation and writeJPEGRepresentation, and I’ve tried other ways like ImageIO and AVFoundation which fails the same way.

I recently discovered that setting useSoftwareRenderer to true for CIContext at least let me write JPEG images but not HEIF.

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Answer 3

ivanpnn26 OP

Jul ’24

I'm experiencing the same issue. Maybe it relates with my case. Firstly, this is my environmet:

iOS 18 Public Beta
Xcode 15.1

How to reproduce:

Load images using PHPickerViewController (in my case, I pick 500 images)
Convert loaded images to Data by using https://developer.apple.com/documentation/uikit/uiimage/1624115-jpegdata
Loaded images data will be uploaded.
When uploading process running, some images cannot be uploaded 414/500 photos are uploaded. 86 photos failed.
When uploading error, there is warning in debug console:

CGImageProviderGetContentHeadroom: Bad headroom value 0.000000 for SDR, returning 1.0

another issue reported by other developer: https://stackoverflow.com/questions/78760760/image-upload-fails-with-error-invalid-image-data

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