I have an app that records a 32 x 32 rect under the cursor as the user moves it around and it sends it to Flutter. It suffers from major lag. Instead of getting 30 fps, I get about 7 fps. That is, there are significant lags between screen grabs. This on an Intel Mac mini x64 with 15.7.3 and one display. flutter: NATIVE: ExplodedView framesIn=2 timeSinceStart=1115.7ms gapSinceLastFrame=838.8ms flutter: NATIVE: ExplodedView framesIn=4 timeSinceStart=1382.6ms gapSinceLastFrame=149.9ms flutter: NATIVE: ExplodedView framesIn=5 timeSinceStart=1511.0ms gapSinceLastFrame=128.4ms flutter: NATIVE: ExplodedView framesIn=7 timeSinceStart=1698.3ms gapSinceLastFrame=102.9ms flutter: NATIVE: ExplodedView STOP polling totalTime=4482.6ms framesIn=28 framesSent=28 acks=28 Here's a testable excerpt: import ScreenCaptureKit import CoreMedia import CoreVideo import QuartzCore final class Test: NSObject, SCStreamOutput, SCStreamDelegate { private let q = DispatchQueue(label: "cap.q") private var stream: SCStream? private var lastFrameAt: CFTimeInterval = 0 private var frames = 0 func start() { SCShareableContent.getExcludingDesktopWindows(false, onScreenWindowsOnly: true) { content, err in guard err == nil, let display = content?.displays.first else { print("shareableContent error: \(String(describing: err))"); return } let filter = SCContentFilter(display: display, excludingWindows: []) let config = SCStreamConfiguration() config.showsCursor = false config.queueDepth = 1 config.minimumFrameInterval = CMTime(value: 1, timescale: 30) config.pixelFormat = kCVPixelFormatType_32BGRA config.width = 32 config.height = 32 config.sourceRect = CGRect(x: 100, y: 100, width: 32, height: 32) let s = SCStream(filter: filter, configuration: config, delegate: self) try! s.addStreamOutput(self, type: .screen, sampleHandlerQueue: self.q) self.stream = s s.startCapture { startErr in print("startCapture err=\(String(describing: startErr))") } // Optional: move sourceRect at 30Hz (cursor-follow simulation) Timer.scheduledTimer(withTimeInterval: 1.0/30.0, repeats: true) { _ in let c2 = SCStreamConfiguration() c2.showsCursor = false c2.queueDepth = 1 c2.minimumFrameInterval = CMTime(value: 1, timescale: 30) c2.pixelFormat = kCVPixelFormatType_32BGRA c2.width = 32 c2.height = 32 let t = CACurrentMediaTime() c2.sourceRect = CGRect(x: 100 + (sin(t) * 50), y: 100, width: 32, height: 32) s.updateConfiguration(c2) { _ in } } } } func stream(_ stream: SCStream, didOutputSampleBuffer sb: CMSampleBuffer, of type: SCStreamOutputType) { guard type == .screen else { return } let now = CACurrentMediaTime() let gapMs = (lastFrameAt == 0) ? 0 : (now - lastFrameAt) * 1000 lastFrameAt = now frames += 1 if frames <= 10 || frames % 60 == 0 { print("frames=\(frames) gapMs=\(String(format: "%.1f", gapMs))") } } }

My client was apparently setup as an internal tester, and they got a message that their App Store Connect account had been deactivated for reasons unknown. Apparently to re-activate it, they have to provide "passport" info, which seems over the top. I thought about setting them up as an external tester, but apparently this requires the app be reviewed by a person who would have no access to the app's login as it restricted to the client. How can I proceed?

I just tried to use git and i get a response back it can't find version 13 of the SDK. Of course, that makes sense since I have 14.3 installed, but it's stuck in this loop of demanding I install version 13. How can I tell it that 14.3 is installed? I just tried installing 14.3.1 of Xcode and the tools and that had no effect. Still insists on downgrading.

I created a fresh SwiftUI project and added a button with no code. I built and ran the app and clicked the do nothing button. My app promptly crashed with the following complaint: validateComputeFunctionArguments:830: failed assertion `Compute Function(ciKernelMain): writes texture ([0]) whose usage (0x00) doesn't specify MTLTextureUsageShaderWrite (0x02)' Since the only unusual is that I am running under Parallels virtualization, it implies a conflict between it and a simple swift build.

Running a MacOS Intel app from XCode 14.1, trying to access the user’s home folders, in this case, the ~/Downloads folder. I get directoryEnumerator error at file:///Users/maurice/Library/Containers/com.utilitybeltsoftware.icloudstatus2/Data/Downloads/: Error Domain=NSCocoaErrorDomain Code=256 "The file “Downloads” couldn’t be opened." UserInfo={NSURL=file:///Users/maurice/Library/Containers/com.utilitybeltsoftware.icloudstatus2/Data/Downloads/, NSFilePath=/Users/maurice/Library/Containers/com.utilitybeltsoftware.icloudstatus2/Data/Downloads, NSUnderlyingError=0x6000011b2880 {Error Domain=NSPOSIXErrorDomain Code=20 "Not a directory"}} If I cd to this location, I do get access to the ~/Downloads folder, so the error is not telling the truth. Here is my entitlements plist &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"&gt; &lt;plist version="1.0"&gt; &lt;dict&gt; &lt;key&gt;com.apple.security.app-sandbox&lt;/key&gt; &lt;true/&gt; &lt;key&gt;com.apple.security.files.downloads.read-only&lt;/key&gt; &lt;true/&gt; &lt;key&gt;com.apple.security.temporary-exception.files.home-relative-path.read-only&lt;/key&gt; &lt;array&gt; &lt;string&gt;/Documents/&lt;/string&gt; &lt;string&gt;/Desktop/&lt;/string&gt; &lt;/array&gt; &lt;key&gt;com.apple.security.files.user-selected.read-only&lt;/key&gt; &lt;true/&gt; &lt;/dict&gt; &lt;/plist&gt; By the way, I don’t get prompted to grant access to the app and that seems suspicious.

The Finder displays the iCloud status (in the cloud, downloading, local) of every file associated with iCloud. How does it do this? Is there a way to search a given local folder and discover what the Finder knows? Is there a way to tell it programmatically to download any icloud files that aren’t downloaded?