I've updated my computer to Sequoia 15, Xcode 16 and now no matter what I do, I am unable to work with Swift UI previews.
I get this error each time I try to run the preview:
Failed to launch app in reasonable time
I have done:
Uninstall/Re-install Xcode
Deleted derived data
Deleted the simulator data
Used DevCleaner to remove all data related to Xcode
Searched all websites about this issue. ( Non shown a good solution )
Write this question on here.
If anyone has found a solution, please let me know how you fixed it.
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Hi,
We use Flat package installers (.pkg based installers) to install our applications on macOS. In macOS 26.1, installation is failing with the error
Unable to use PK session due to incompatible packages. Terminating. 2025-11-03 14:22:36+05:30 Admin-3 installer[1160]: Install failed: The Installer could not install the software because there was no software found to install.
Same installer package is working on macOS 26.
Any help is greatly appreciated.
Hello. In the Xcode 15 we were using this command in the terminal to run our tests on the Rosetta Simulator:
xcodebuild -workspace CoreLibraries.xcworkspace -scheme CoreLibraries -destination 'platform=iOS Simulator,name=iPhone 15,arch=x86_64' test`
In the Xcode 16 the same command doesn't work anymore. It produces the error:
xcodebuild: error: Unable to find a device matching the provided destination specifier:
{ platform:iOS Simulator, arch:x86_64, OS:latest, name:iPhone 16 }
Unsupported device specifier option.
The device “iPhone 16” does not support the following options: arch
Please supply only supported device specifier options.
Running test directly from the Xcode UI using iPhone 16 (Rosetta) still works fine.
Does anyone know how to modify the xcodebuild command to make it work again?
We started seeing an access issue today when attempting to go to the Xcode Cloud tab in App Store Connect. When you navigate to https://appstoreconnect.apple.com/teams/:teamId/apps/:appId/ci we're seeing the following message:
The page you’re looking for can’t be found.
The page you’re looking for does not exist, or you do not have permission to view it.
I am the account holder so it shouldn't be a permissions issue. Is there an ongoing outage or problem in Xcode Cloud? And, if so, where can I monitor this accurately?
I just updated my device to iOS 18.3 and despite it connecting to my computer, it doesn't appear in Xcode. Some quick troubleshooting led me to the theory that I need to download the matching simulator runtime for it to appear. But I have searched far and wide and the latest sim runtime is ios 18.2 Am I missing something here?
Several app developers are struggling with the inability to provide a separate app icons that looks nice on older macOS versions while at the same time provide Icon Composer icons that look great on macOS Tahoe 26. An ability to provide separate icons is super important to those who have app icons that follow the curvature of the default icon borders (as the corner rounding radius is different for Sequia and Tahoe). Take a look at this for example:
https://github.com/ghostty-org/ghostty/issues/7564#issuecomment-3042061547
Question: Is there a definitive/recommended way to address this issue? How can a developer add a glass icon variant that looks good on Tahoe and provide a bitmap icon for older macOS versions?
Some background info:
Prior to Xcode 26 beta 4, one could add an App Icon to Assets to be used as app icon for legacy macOS versions (Sequia and older) and use a new Icon Composer icon (placed in the project root) for macOS Tahoe 26. Enabling "Include all app icon assets" under target settings ensured that older macOS versions would use the old app icons while Tahoe the new Icon Composer glass one.
Since Xcode beta 4 this technique no longer works. Xcode instead insists on populating Assets.car with Icon Composer generated variants, disregarding the App Icon provided in Assets. Although the App Icon in Assets makes its way to a .incs file in the app bundle's Contents/Resources folder, but that is not used by macOS anymore and is there for some compatibility purposes. The Assets.car file (which matters) only contains the variants generated by Icon Composer and does not contain the png icons provided in the Assets.
Hello.
I'm seeing an inconsistent behavior where breakpoints I set in my (Swift) iOS app behave normally when I'm debugging on a device or on a simulator running iOS 17.x, but when I try using simulators of iOS 16 or 15 the breakpoints get ignored completely. I also observe that the breakpoints remain solid blue and do NOT adopt the dotted blue outline, as experienced by other users.
I've seen a few posts on here and on SO about the general issue of ignored breakpoints (with no conclusive answer AFAIK), but I haven't seen any where the behavior varies with the SDK being used. The behavior is repeatable and predictable (within the same app at least). I am not adding the breakpoints after building/running, and I'm sure the logic reaches the lines with the breakpoints (and again, whenever I switch to an iOS 17 simulator, execution does pause as expected with the exact same breakpoints).
Things I've tried and looked into:
Clean up project build folder
Delete and re-install simulators (iOS 16.4 and 15.5)
Deleted the entire derived data directory, as well as the CoreSimulator one.
Confirm the build configuration is Debug, and the "Debug executable" option is checked.
inspect various build flags mentioned in other posts:
{Swift compiler - Code generation - Optimization level - Debug: -0none; Debug information format: DWARF (I also tried DWARF with dSYM with no impact)}.
Most of my settings are on the plain vanilla/out of the box side, with only a couple of SPM dependencies, and I've been maintaining the same app for about 5 years and don't think I've come across this behavior before.
Currently using Xcode 15.1. Deployment target is 14.0.
Thank you.
Xcode 16.3 build on ios18.4 ,app can't launch. Then lost connection to the debugger .
but Xcode16.3 with ios18.3 can launch
Xcode 16 unindents lines if I choose a code-completion and I cannot find a way to stop this - does anybody know how to stop it?
Here's a link to a gif demonstrating this problem - it's incredibly frustrating.
https://i.imgur.com/jaDpzpb.gif
Thanks in advance
Topic:
Developer Tools & Services
SubTopic:
Xcode
I am getting following error from one of the pod frameworks while running the app (Build is a success).
dyld: Symbol not found: __ZN5swift34swift50override_conformsToProtocolEPKNS_14TargetMetadataINS_9InProcessEEEPKNS_24TargetProtocolDescriptorIS1_EEPFPKNS_18TargetWitnessTableIS1_EES4_S8_E.
Referenced from: X framework
Expected in: frameworks/DeviceKit.framework/DeviceKit
mac OS 10.15
Xcode 12.4
React native 0.63
cocoapods: 1.10.1
We have a macOS application packaged as a .pkg file. To notarize it, we first code-sign individual library folders and the .app bundle using the following command:
codesign --force --deep --sign "Developer ID Application: <Our Account Name>, LLC (Team ID)" "Our_product.app"
Code Sign result for .app file:
Our_prodcut.app: valid on disk
Our_product.app: satisfies its Designated Requirement
We are using packages tool to create .pkg file with code signed .app file.
Steps followed once .pkg file is ready:
1. Product Sign:
productsign -sign "Developer ID Installer: <Our Account Name>" output.pkg signed-output.pkg
2. Submit for notorization:
`xcrun notarytool submit signed-outout.pkg --keychain-profile "notarytool-password" --wait
Received following output:
Current status: Accepted.................................
Processing complete
id: 2d5c450f-5b22-4b4d-9579-ef21c0356548
status: Accepted
Transferred Notarization log:
xcrun notarytool log 10169892-b28c-407c-b348-edab0b34ef34 --keychain-profile "notarytool-password" Desktop/developer_log_6.json
We have observed log with "Accepted" status with issues as "null".
3. Stapler:
stapler staple signed-output.pkg
stapler validate signed-output.pkg
Processing: signed-output.pkg
The validate action worked!
4. Checking status of .pkg file:
Command:
spctl --assess --verbose=4 signed-output.pkg
Output:
signed-output.pkg: rejected
source=no usable signaturess
Warning During Installation:
While installing the .pkg file, a security warning appears as follows. Please help us to resolve this.
I am setting up a new app and am having problems with Xcode Cloud. From Xcode if I click on the "Cloud" button under the Report Navigator I get a spinner for a long time then get the message "Could not load Xcode Cloud data". I also visited the "Xcode Cloud" tab under my app in App Store Connect and I get a spinner and nothing loads.
This is a recent account and I'm setting up Xcode Cloud for the first time. Below is what I've tried and I'm out of ideas on how to get this working.
In Xcode, I signed out and back in as the Account Holder
Closed Xcode and reopened
This occurred yesterday and today and have not seen a problem under the Apple System Status page
On the latest Xcode 16.2
Checked the Signing & Capabilities tab in Xcode and my team a bundle Id is correct and it's happy with signing. At this time on my machine I am using the distribution profile.
We are trying to track down some build failures that started happening only in our Jenkins CI environment.
error: Failed to decode version info for '/Applications/Xcode.app/Contents/Developer/usr/bin/actool': The data couldn’t be read because it is missing.
(stdout: '<?xml version="1.0" encoding="UTF-8"?>
[2025-07-30T19:21:18.479Z] <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
[2025-07-30T19:21:18.479Z] <plist version="1.0">
[2025-07-30T19:21:18.479Z] <dict>
[2025-07-30T19:21:18.479Z] <key>com.apple.ibtool.version</key>
[2025-07-30T19:21:18.479Z] <dict>
[2025-07-30T19:21:18.479Z] <key>bundle-version</key>
[2025-07-30T19:21:18.479Z] <string>24112</string>
[2025-07-30T19:21:18.479Z] <key>short-bundle-version</key>
[2025-07-30T19:21:18.479Z] <string>26.0</string>
[2025-07-30T19:21:18.479Z] </dict>
[2025-07-30T19:21:18.479Z] </dict>
[2025-07-30T19:21:18.479Z] </plist>
[2025-07-30T19:21:18.479Z] ', stderr: ''
Key facts we've noted:
Locally I cannot reproduce the problem
We did not see this problem with previous Xcode 26 betas
If I remote into the machine and run build commands from the command line I cannot reproduce the problem
The very first build succeeds, every build after that on this machine fails from jenkins
actool --version is spitting out the version information for ibtool, but only in the context of running from a jenkins agent. If I run this locally or if I remote into the CI machine and run this from the terminal I cannot reproduce this behavior.
Command line tools appear to be installed, xcode-select --install fails if I try to do it from the command line.
We've tried to recreate the build agents for this jenkins environment exactly as they were for all previous betas and xcode versions, and still get this behavior.
There are at the moment a lot of spams for a bank phone number.
https://developer.apple.com/forums/thread/769506
What is really surprising is to read App Store Connect Engineer answer, each time the same:
We appreciate your interest in participating in the forums! These forums are for questions about developing software and accessories for Apple platforms. Your question seems related to a consumer feature and is better suited for the Apple Support Communities
Is it an automatic answer (I cannot believe anyone who read the post did not notice it was a spam) ? If so, couldn't it simply detect it is a spam (Apple Intelligence could come to help) and delete the message (or the account) ?
PS: it would also be a spam in Apple Support Communities
PS2: I note the message has been deleted very rapidly.
Xcode 26 Beta 5 XIB Compiler outputs NIBs with dependency on class that isn't available pre-macOS 26
When Xcode 26 Beta 5 compiles my XIBs into NIBs, it spits out a dependency on a class that isn't available pre-macOS 26, named _TtCC6AppKit14NSScrollPocketP33_EC3F85FAB7755D56E669206D2B17725B12BackdropView.
All XIBs have a deployment target of macOS 12, so in theory this should be avoided. Even if this is a new (internal) class to macOS 26, the dependency is a problem when the developer is asking to deploy to prior versions.
Has anyone else run into this regression? What could possibly be causing the XIB compiler to inject this dependency? The resulting NIBs don't load on anything prior to macOS 26.
I've been happily building and deploying my app to my iPhone and Watch S8, and the app was ready to submit to App Store Connect last night. However, when archiving it I got an error saying that my DynamicEventSelectionIntent was in multiple extensions. It was, kind of. When I started working on the complications I copied the Widgets intents into the complications, and left the name the same, but they were not in multiple targets.
It looks like the info plist only had one item in the IntentsSupported (because they're the same name), so I decided to rename them so I had a widget one and a complications one.
The problem I have now is that I can't deploy to my iPhone and Watch anymore because I'm getting this error:
This app contains a WatchKit app with one or more Siri Intents app extensions that declare IntentsSupported that are not declared in any of the companion app's Siri Intents app extensions. WatchKit Siri Intents extensions' IntentsSupported values must be a subset of the companion app's Siri Intents extensions' IntentsSupported values.
All I've done is rename one intent, and locate every instance of it in the info plist files, and add the appropriate new one into the right places.
Here's what I've got. Main App contains Widget and WidgetIntentHandler, plus Watch App, which contains Complications and ComplicationsIntentHandler.
Target: Main app: (I've removed everything that has no bearing on extensions.)
Target: Widget:
Target: WidgetIntentHandler:
Target: Watch App:
Target: Complications:
Target: ComplicationsIntentHandler:
Please, can someone tell me what should and should not be in the various parts, as I've tried for 12 hours now and I cannot get this to deploy to my iPhone anymore :( Thanks.
Up until now, it was possible to check in build scripts via the ENABLE_PREVIEWS environment variable whether a build for a SwiftUI preview is being executed.
In addition, it was also possible to conditionally compile code for SwiftUI or exclude it from compilation using this variable.
This no longer works with Xcode 16 and the new SwiftUI Preview compilation!
There is still the option to switch to the old system with the "Use Legacy Previews Execution" setting, but as stated in the release notes, this option will be removed at some point.
Which brings us back to the old problem of not being able to exclude build scripts from preview builds and not being able to prevent certain code from being compiled / add special code for SwiftUI previews.
This is a terrible situation, especially for more complex projects in which precisely the points mentioned are important for the build process.
I seriously hope Apple provides us with another environment variable for SwiftUI preview builds that we can use.
Today's Xcode release won't download the visionOS SDK, gives a 'network error'.
Topic:
Developer Tools & Services
SubTopic:
Xcode
I have os_log statements in my app. With my phone connected to the Mac, when I run the app through XCode, open Console app, those logs are shown. However, when I'm launching the app on its own, those logs don't appear in Console (phone still connected).
Am I missing something very basic? Please help.
Got emailed three .txt crash files. Cannot for the life of me figure out how to get Xcode to do something with them.
Tried:
renaming .txt to .crash
Dropping onto "devices and simulators" window
Dropping on to "devices and simulators > select device >
View device logs"
"Download debug symbols" for the archive in Xcode (says "dowloaded debug symbols" so did it)
... and many other things
Xcode 13 simply refuses to respond to the drag-and-drop of the file no matter the file extension and no matter where in Xcode's various windows/tools I drop it.
Has anyone done this with a crash .txt file from app review and Xcode 13?