The crash is at do { retval = try ModelContainer(for: schema, configurations: [modelConfiguration]) } catch { fatalError("Could not create ModelContainer: \(error)") } When I first set it up, it complained (at run-time) about a lot of issues, mainly items not being optional and I apparently had a couple of @Attribute(.unique)s left. After I got rid of all of those, however, I get the crash there. I assume this is an obvious thing that I am doing wrong, but I can't figure it out.

I've got a core data model, with a name, which I've cleverly called cdName. My view has: @Environment(\.managedObjectContext) private var viewContext @FetchRequest(sortDescriptors: [ SortDescriptor(\Item.cdName), ]) private var items: FetchedResults<Item> and then, later ForEach(self.items, id: \.self) { item in NavigationLink { ItemView(item: item) .environment(\.managedObjectContext, self.viewContext) } label: { LabelWithMenuView(label: item.cdName ?? "<no name>") { ptr in if let newName = ptr { let oldName = item.cdName! item.cdName = newName do { try self.viewContext.save() } catch { print("Could not save rename of \(oldName) to \(newName)") } } (LabelWithMenuView is a view that has an on-hover button which brings up a rename sheet and passes the new name off to the completion handler.) When I do this (macOS)... it does change the name in Core Data, but it doesn't update the view. If I quit&restart my app, it shows up with the new name. What am I doing wrong, please?

Why doesn't this work? (Specifically, it crashes.) struct Item: Identifiable, Hashable, Codable { var id = UUID() var name: String? = nil } private let defaults: [Item] = [ Item(name: "Bread"), Item(), Item(name: "Peanut Butter"), Item(name: "Jelly") ] struct ContentView: View { @State var selectedItem = Set<Item>() @State var showSheet = false var body: some View { VStack { ForEach(defaults, id: \.self) { item in Button(item.name ?? "<unnamed>") { self.selectedItem.removeAll() self.selectedItem.insert(item) print("Selected item is now \(self.selectedItem)") self.showSheet = true } } } .sheet(isPresented: self.$showSheet) { let _ = print("selected item \(self.selectedItem)") RenameSheet(name: self.selectedItem.first!.name ?? "<no name>") { self.selectedItem.removeAll() } } .padding() } } Based on the output from the prints, it gets set when the button is clicked, but is then empty when the sheet is presented.

As I've mentioned multiple times, we've discovered some very annoying failures when using a TPP, including FaceTime, AirDrop, and some VPNs. (Tailscale works fine, weirdly enough.) In doing some experimentation today with FortiNet, I was able to get the TPP to work if I added the FortiNet server (which, in our case, is an amazon VM) to the TPP's excludedNetworks list. While it is not working, the tcpdump I got for the host was: 15:15:35.584029 IP (tos 0x0, ttl 64, id 1976, offset 0, flags [none], proto UDP (17), length 412) 192.168.43.16.55067 > ${hidden}.ipsec-msft: [udp sum ok] NONESP-encap: isakmp 1.0 msgid 00000000 cookie d66f571dcfc483ba->0000000000000000: phase 1 I ident: (sa: doi=ipsec situation=identity (p: #1 protoid=isakmp transform=2 (t: #1 id=ike (type=lifetype value=sec)(type=lifeduration len=4 value=00015180)(type=enc value=aes)(type=keylen value=0080)(type=auth value=fde9)(type=hash value=sha1)(type=group desc value=modp2048)) (t: #2 id=ike (type=lifetype value=sec)(type=lifeduration len=4 value=00015180)(type=enc value=aes)(type=keylen value=0100)(type=auth value=fde9)(type=hash value=sha2-256)(type=group desc value=modp2048)))) (vid: len=16 4a131c81070358455c5728f20e95452f) (vid: len=16 8f8d83826d246b6fc7a8a6a428c11de8) (vid: len=16 439b59f8ba676c4c7737ae22eab8f582) (vid: len=16 4d1e0e136deafa34c4f3ea9f02ec7285) (vid: len=16 80d0bb3def54565ee84645d4c85ce3ee) (vid: len=16 7d9419a65310ca6f2c179d9215529d56) (vid: len=16 cd60464335df21f87cfdb2fc68b6a448) (vid: len=16 90cb80913ebb696e086381b5ec427b1f) (vid: len=16 4c53427b6d465d1b337bb755a37a7fef) (vid: len=16 b4f01ca951e9da8d0bafbbd34ad3044e) (vid: len=8 09002689dfd6b712) (vid: len=16 12f5f28c457168a9702d9fe274cc0100) (vid: len=16 afcad71368a1f1c96b8696fc77570100) E.......@.....+.6.8c......6......oW........................|...d...........X.......(..............Q........................(..............Q.........................J.....XE\W(...E/........m$ko....(.......C.Y..glLw7."........M...m..4......r........=.TV^.FE..\......}...S..o,....R.V.....`FC5.!.|...h..H........>.in.c...B{.....LSB{mF].3{.U.z..........Q.......J..N.... .&.............Eqh.p-..t...........h...k...wW.. 15:15:35.901666 IP (tos 0x0, ttl 46, id 23154, offset 0, flags [none], proto UDP (17), length 272) ${hidden}.ipsec-msft > 192.168.43.16.55067: [udp sum ok] NONESP-encap: isakmp 1.0 msgid 00000000 cookie d66f571dcfc483ba->d1ec3b9d2f311bf5: phase 1 R ident: (sa: doi=ipsec situation=identity (p: #1 protoid=isakmp transform=1 (t: #1 id=ike (type=lifetype value=sec)(type=lifeduration len=4 value=00015180)(type=enc value=aes)(type=keylen value=0080)(type=auth value=fde9)(type=hash value=sha1)(type=group desc value=modp2048)))) (vid: len=16 4a131c81070358455c5728f20e95452f) (vid: len=16 afcad71368a1f1c96b8696fc77570100) (vid: len=8 09002689dfd6b712) (vid: len=16 12f5f28c457168a9702d9fe274cc0204) (vid: len=16 4c53427b6d465d1b337bb755a37a7fef) (vid: len=16 8299031757a36082c6a621de00000000) (vid: len=16 9b15e65a871aff342666623ba5022e60) (vid: len=16 ca4a4cbb12eab6c58c57067c2e653786) E...Zr......6.8c..+.......Z>.....oW.......;./1.................<...........0.......(..............Q.........................J.....XE\W(...E/........h...k...wW...... .&.............Eqh.p-..t.......LSB{mF].3{.U.z..........W.`...!............Z...4&fb;...`.....JL......W.|.e7. 15:15:35.901756 IP (tos 0x0, ttl 64, id 41586, offset 0, flags [none], proto ICMP (1), length 56) 192.168.43.16 > ${hidden}: ICMP 192.168.43.16 udp port 55067 unreachable, length 36 IP (tos 0x0, ttl 46, id 23154, offset 0, flags [none], proto UDP (17), length 272) ${hidden}.ipsec-msft > 192.168.43.16.55067: [no cksum] [|isakmp_rfc3948] `.....<"..:...E..8.r..@.}q..+.6.8c...Q....E...Zr......6.8c..+......... 15:15:38.904628 IP (tos 0x0, ttl 46, id 23155, offset 0, flags [none], proto UDP (17), length 272) ${hidden}.ipsec-msft > 192.168.43.16.55067: [udp sum ok] NONESP-encap: isakmp 1.0 msgid 00000000 cookie d66f571dcfc483ba->d1ec3b9d2f311bf5: phase 1 R ident: (sa: doi=ipsec situation=identity (p: #1 protoid=isakmp transform=1 (t: #1 id=ike (type=lifetype value=sec)(type=lifeduration len=4 value=00015180)(type=enc value=aes)(type=keylen value=0080)(type=auth value=fde9)(type=hash value=sha1)(type=group desc value=modp2048)))) (vid: len=16 4a131c81070358455c5728f20e95452f) (vid: len=16 afcad71368a1f1c96b8696fc77570100) (vid: len=8 09002689dfd6b712) (vid: len=16 12f5f28c457168a9702d9fe274cc0204) (vid: len=16 4c53427b6d465d1b337bb755a37a7fef) (vid: len=16 8299031757a36082c6a621de00000000) (vid: len=16 9b15e65a871aff342666623ba5022e60) (vid: len=16 ca4a4cbb12eab6c58c57067c2e653786) E...Zs......6.8c..+.......Z>.....oW.......;./1.................<...........0.......(..............Q.........................J.....XE\W(...E/........h...k...wW...... .&.............Eqh.p-..t.......LSB{mF].3{.U.z..........W.`...!............Z...4&fb;...`.....JL......W.|.e7. 15:15:38.904763 IP (tos 0x0, ttl 64, id 8956, offset 0, flags [none], proto ICMP (1), length 56) 192.168.43.16 > ${hidden}: ICMP 192.168.43.16 udp port 55067 unreachable, length 36 IP (tos 0x0, ttl 46, id 23155, offset 0, flags [none], proto UDP (17), length 272) ${hidden}.ipsec-msft > 192.168.43.16.55067: [no cksum] [|isakmp_rfc3948] `.....<"..:...E..8"...@.....+.6.8c...Q....E...Zs......6.8c..+......... So, given that, I tried adding let msftIPSecHost = NWHostEndpoint(hostname: "", port: "4500") let msftIPSecRule = NENetworkRule(destinationNetwork: msftIPSecHost, prefix: 0, protocol: .any) settings.excludedNetworkRules = [msftIPSecRule] and... it worked. At least, the fortinet client worked, and AirDrop transmission worked. Note that I never saw the flows for port 4500 in handleNewUDPFlow(:initialRemoteEndpoint:) -- just having a UDP rule that would intercept them seems to have caused it to fail. Anyone encountered this, or have an explanation? (I am now trying it in our actual product to see how it works.)

I was trying to check the documentation for handleNewUDPFlow over at https://developer.apple.com/documentation/networkextension/neappproxyprovider/3192017-handlenewudpflow and... it says it's deprecated on everything. Retroactively.

That's pretty much it -- I can increase memory, file descriptor, etc., but can I increase the number of threads? (I've got a case where, in an error condition, my threads block [still trying to figure out why] and new ones are still being generated, until I hit a limit of 512 threads.)

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.0.sdk/usr/include/c++/v1/__format/formatter_floating_point.h:66:30: error: 'to_chars' is unavailable: introduced in macOS 13.3 66 | to_chars_result __r = std::to_chars(__first, __last, __value, __fmt); Which, ok, I can accept that this is true. Except that this worked on Friday, on the same machine running Sonoma and the previous version of Xcode. The project is configured for a deployment target of 12.0, so it should have failed before, but didn't. (This is a CMake-generated xcodeproj, but that also should not have been any change.)

I'm playing around with using an app to automate some of my personal work flows, and one of the things I wanted to do was to be able to drag a .webloc file onto my app icon in the dock, to launch it. I've got public.data set up as a document type for it in Xcode, which translated to &lt;key&gt;CFBundleDocumentTypes&lt;/key&gt; &lt;array&gt; &lt;dict&gt; &lt;key&gt;CFBundleTypeRole&lt;/key&gt; &lt;string&gt;Viewer&lt;/string&gt; &lt;key&gt;LSHandlerRank&lt;/key&gt; &lt;string&gt;Default&lt;/string&gt; &lt;key&gt;LSItemContentTypes&lt;/key&gt; &lt;array&gt; &lt;string&gt;public.data&lt;/string&gt; &lt;/array&gt; &lt;/dict&gt; &lt;/array&gt; in the Info.plist for it, which seems correct. When I drag a .webloc file onto the Dock icon, it appears to be willing to accept it, but nothing seems to happen. In the app, I've got an AppDelegate.swift file which has extension Notification.Name { static let receivedURLsNotification = Notification.Name("ReceivedURLsNotification") } class AppDelegate: NSObject, NSApplicationDelegate { func application(_ application: NSApplication, open urls: [URL]) { guard !urls.isEmpty else { return } NotificationCenter.default.post(name: .receivedURLsNotification, object: nil, userInfo: ["URLs": urls]) } } (I copied it almost verbatim from a Medium post.) In the app swift file, I have @main struct LoggerApp: App, DropDelegate { @NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate I set a breakpoint on application(_:NSApplication, open:[URL]), and did my drag, and the breakpoint never triggered. I added the application(didFinishLaunching(_:Notification) method, and that does get invoked when the app launches, so the app delegate does seem to be working. That seems to indicate the problem is somewhere else?

I added ES_EVENT_TYPE_AUTH_SIGNAL to the event list, and added logging: os_log_debug(esfLogger, "antitampering signal %d from process %{public}s to process %{public}s", esm.signal, signing.UTF8String, targetSigning.UTF8String); I get some logs, such as 2024-12-09 10:21:47.668034+0000 0xc2c562 Debug 0x0 29448 0 DopeMonitorService: [security.dope:anti-tamper] antitampering signal 0 from process com.apple.spindump to process com.apple.mds_stores But when I do sudo kill -9 ${ourappprocess}, the proess dies with no log generated. (This is a different process than the one using ESF; the goal is, obviously, to keep our processes from being killed, but I'm only at the logging stage so far.) sudo kill -INFO ${ourappprocess} works: 2024-12-09 10:21:38.410851+0000 0xc2c562 Debug 0x0 29448 0 Monitor: [debug:anti-tamper] antitampering signal 29 from process com.apple.csh to process Worker So it is getting through to the monitoring process. But kill -9 ... isn't. Am I missing something obvious again?

% mkdir /tmp/test % cd /tmp/test % touch {a,b,c}{1,2,3,4,5,6}.txt % lf a1.txt a3.txt a5.txt b1.txt b3.txt b5.txt c1.txt c3.txt c5.txt a2.txt a4.txt a6.txt b2.txt b4.txt b6.txt c2.txt c4.txt c6.txt % echo [b-z]*.txt a1.txt a2.txt a3.txt a4.txt a5.txt a6.txt b1.txt b2.txt b3.txt b4.txt b5.txt b6.txt c1.txt c2.txt c3.txt c4.txt c5.txt c6.txt I filed FB16715590 about this. I have a vague memory this might be related to some code to pretend to be case insensitive, but I can't find it now.

I filed FB19631435 about this just now. Basically: starting with 15.6, we've had reports (internally and outternally) that after some period of time, networking fails so badly that it can't even acquire a DHCP lease, and the system needs to be rebooted to fix this. The systems in question all have at least 2 VPN applications installed; ours is a transparent proxy provider, and the affected system also had Crowdstrike's Falcon installed. A customer system reported seemingly identical failures on their systems; they don't have Crowdstrike, but they do have Cyberhaven's. Has anyone else seen somethng like this? Since it seems to involve three different networking extensions, I'm assuming it's due to an interaction between them, not a bug in any individual one. But what do I know? 😄

We're trying out using a 3rd party java applet as part of our suite, but we're getting inconsistent results that seem to be related to signing. "Fortunately," I can trivially reproduce it! It pops up a dialogue saying "Apple could not verify “java” is free of malware that may harm your Mac or compromise your privacy"; if I click through the dialogue and the system settings, it then does the same for each of the dylib files. The file seems to be signed, so is this a matter of it not being notarized? Will we have to sign and notarize them all on our own?

The documentation for, eg NEAppProxyProvider, has a lot of redirections and implicit configurations that I simply don't know and sometimes can't follow. I wanted to try making a VPN network extension that (for the moment) just got loaded and did nothing. I can't even get that far, it seems. I'm clearly missing the setup I need to do. Unfortunately, the old SimpleTunnelCustomizedNetworkingUsingtheNetworkExtensionFramework sample doesn't build anymore, what with it being Swift 3 based. Is there a newer, made-for-idiots sample program somewhere?

Under macOS (and especially when using MDM), is it the case that a system extension (in particular, a Transparent Proxy Provider or Endpoint Security extension) must be embedded in an application bundle in /Applications? Or can they be located in some other location, or even directly installed into /Library/SystemExtensions and then activated via a LaunchDaemon? Does it matter whether it's distributed via the App Store or part of enterprise distribution? (Yes, my next step is to look into MDM, about which I know very little. 😄) This is a case of me being confused by the documentation, and looking at some existing products.

On three different machines (all running Xcode 13 and Big Sur), it always tells me that the command-line developer tools need to be installed. I've "installed" them four times so far on one machine, and at least twice on the other two.