Hi, I'm trying to write a Quick Look extension for my iOS app. However, I'm having issues initializing AVAudioEngine in my QLPreviewingController subclass from preparePreviewOfFile. The following error messages are printed to the console after attempting to initialize AVAudioEngine, and the Quick Look Extension crashes with EXC_BAD_ACCESS. The same code works fine within the main iOS app. It also works on macOS inside a Catalyst app on the macOS Monterey RC when previewing a file in the Finder. I've also filed feedback with feedback number FB9713048. Thanks for taking a look at this. Console output: [audiocomp] AudioComponentPluginMgr.mm:545 reg server remote proxy error Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.audio.AudioComponentRegistrar was invalidated: failed at lookup with error 159 - Sandbox restriction." UserInfo={NSDebugDescription=The connection to service named com.apple.audio.AudioComponentRegistrar was invalidated: failed at lookup with error 159 - Sandbox restriction.} [as] AudioSessionClientManager.cpp:475 Couldn't connect to com.apple.audio.AudioSession Error: 1100; AudioSession will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] AURemoteIO is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: AURemoteIO returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] AURemoteIO is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: AURemoteIO returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] AURemoteIO is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: AURemoteIO returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] GetProperty is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: GetProperty returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] SetProperty is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: SetProperty returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] Initialize is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: Initialize returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:1123 failed: 268435459 (enable 2, outf< 2 ch, 0 Hz, Float32, deinterleaved> inf< 2 ch, 0 Hz, Float32, deinterleaved>) throwing -10878 throwing -10878 throwing -10878 throwing -10878 throwing -10878 throwing -10878 throwing -10878 throwing -10878 throwing -10878 [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] SetProperty is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: SetProperty returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] Initialize is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: Initialize returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:1123 failed: 268435459 (enable 2, outf< 2 ch, 44100 Hz, Float32, deinterleaved> inf< 2 ch, 0 Hz, Float32, deinterleaved>) [avae] AVAEInternal.h:109 [AVAudioEngineGraph.mm:1344:Initialize: (err = PerformCommand(*outputNode, kAUInitialize, NULL, 0)): error 268435459 [avae] AVAudioEngine.mm:167 Engine@0x2830594d0: could not initialize, error = 268435459 [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] SetProperty is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: SetProperty returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] Initialize is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: Initialize returned server mach error 0x10000003! [aurioc] AURemoteIO.cpp:1123 failed: 268435459 (enable 2, outf< 2 ch, 44100 Hz, Float32, deinterleaved> inf< 2 ch, 0 Hz, Float32, deinterleaved>) [avae] AVAEInternal.h:109 [AVAudioEngineGraph.mm:1344:Initialize: (err = PerformCommand(*outputNode, kAUInitialize, NULL, 0)): error 268435459 [avae] AVAudioEngineGraph.mm:4631 Can't retrieve source node to play sequence because there is no output node! [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [aurioc] AURemoteIO.cpp:148 Couldn't connect to com.apple.audio.AURemoteIOServer; AURemoteIO will not be usable [default] GetProperty is passing a serverPID of 0 to CheckRPCError! [default] CheckRPCError: GetProperty returned server mach error 0x10000003! (lldb)

Hi, I have an M1 MacBook Air on which I would like to debug an iOS "Designed for iPad" app. However, I would like to remotely debug the iOS app from my development machine which already has Xcode installed instead of having to install gigabytes of Xcode content onto the M1 Mac. Is there any way I can do this? So far, I've tried the following things: Plugging the M1 Mac into my development machine with a USB-C cable (I figured it would work similarly to an iPhone or iPad since M1 Macs have a similar architecture - nothing happened) Attempted remote debugging over SSH (couldn't find the option in Xcode, although old articles show that it was present back in Xcode 4) Help would be appreciated. Thanks!

My iOS app has a Quick Look extension. Will this Quick Look extension be available in visionOS when run as an iPad app in the Shared Space and/or if I rebuild using the visionOS SDK?

Hi, I have macOS 14 Sonoma beta 2 (build 23A5276g) running in a VM powered by Virtualization.framework with Xcode 15 beta 2 (build 15A5161b) installed. My host machine is an M1 MacBook Air running macOS Ventura 13.4.1. The iOS and iPadOS simulators work fine. However, when I launch the visionOS simulator from Xcode, all I get is a blank screen. Would anyone be able to help with this? I also noticed that when the visionOS simulator is open, none of the other simulators work. However, as soon as I close the visionOS simulator, everything else starts working again. Thanks!