After switching from Xcode 16 to Xcode 26, the app crashes. It runs normally in Xcode 16 but crashes in Xcode 26. The stack trace is below. dyld[29371]: Library not loaded: /usr/lib/swift/libLiveExecutionResultsLogger.dylib Referenced from: /private/var/containers/Bundle/Application/306FCC79-E84A-4C54-ACBE-D1EC6A469560/BoxPlayer.app/BoxPlayer.debug.dylib Reason: tried: '/usr/lib/system/introspection/libLiveExecutionResultsLogger.dylib' (no such file, not in dyld cache), '/usr/lib/swift/libLiveExecutionResultsLogger.dylib' (no such file), '/private/preboot/Cryptexes/OS/usr/lib/swift/libLiveExecutionResultsLogger.dylib' (no such file), '/usr/lib/swift/libLiveExecutionResultsLogger.dylib' (no such file, not in dyld cache)

I have an AppleTV app which I released in 2016. I've updated it and released a new version every year without much hassle. This year, with tvOS 17.2, the layered app icon isn't working right. This is a two-layer image made with PNGs. When it's selected, it looks right and the layers move correctly: But when it's not selected, the background layer disappears: Screenshots are from the simulator but it also happens on the device. It's inconsistent; sometimes it's the front layer that disappears. Occasionally both layers work, but I can't tell why. I've spent a day trying everything. Very frustrated. The icon previews correctly in Xcode and in Parallax Viewer. The image sizes are correct: 400 x 240 for Small, 800 x 480 for Small@2x, 1280 x 768 for Large. The back layer is a non-transparent PNG. I tried adding a Large@2x set. Didn't help. Originally I had a three-layer image with no middle layer PNG. I deleted the empty middle layer, but that didn't help. All the PNG files are from GnuIMP. Same color space, even. I was using the filenames tvicon-back-s.png and tvicon-back-s@2x.png. I tried taking out the @ sign in case that was confusing Xcode. (It never has before, but I am flailing here.) Anybody have any clues? If it's an Apple bug and there's nothing I can do, I'm going to just push the release button and hope it fixes itself someday.

When running unit tests or UI tests that cause a crash (even intentionally), the simulator itself crashes and can't be booted again in subsequent runs. This started happening from Xcode 26, our project never had this issue before (we had crashes before as well). Steps to Reproduce: Run the unit test with fatalError(). Observe the simulator crashes. On the next test run, the simulator fails to boot, remaining in a crashed or stuck state. Example error: error = Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "Simulator device failed to launch com.xxx.xctrunner." UserInfo={NSLocalizedDescription=Simulator device failed to launch com.xxx.xctrunner., NSUnderlyingError=0x600009895830 {Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.xxx.xctrunner" failed." UserInfo={BSErrorCodeDescription=RequestDenied, NSLocalizedDescription=The request to open "com.xxx.xctrunner" failed., NSUnderlyingError=0x6000085d9500 {Error Domain=FBProcessExit Code=64 "The process failed to launch." UserInfo={NSUnderlyingError=0x60000850b360 {Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo=0x600008999340 (not displayed)}, BSErrorCodeDescription=launch-failed, NSLocalizedFailureReason=The process failed to launch.}}, FBSOpenApplicationRequestID=0xbe36, NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace).}}, NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., FBSOpenApplicationRequestID=0xbe36, SimCallingSelector=launchApplicationWithID:options:pid:error:, BSErrorCodeDescription=RequestDenied})

I am trying to run the simple demo app from xcode on my Apple Watch SE 1st gen, which has WatchOS 10.6 This turned out to be an impossible mission. I have xcode 16.1 installed, can't downgrade to 15.4 (which is the latest that supports this os) since it won't run on my OS (Sequoia), using parallels I installed Sonoma and xcode 15.4 but it won't recognize my iphone or my watch. Asking ChatGPT it seems that it is possible to use the DeviceSupport watchOS 10.6 image if I get it from someone, but loading it up "the right way" on my machine turned out to be impossible. Any recommendations / help / link to this file where I can download it?

Hi everyone, I created my app icon using Apple’s Icon Composer tool, a single AppIcon.icon file, set the iOS and Mac Catalyst using shared mode. There’s no AppIcon imageSet in Assets.xcassets. The app displays the icon correctly at runtime — both on iOS devices and on macOS (Catalyst build). On macOS versions prior to 26, the App Store icon looked completely normal. However, in App Store Connect and in the Mac App Store on macOS 26, the icon appears with a gray border. Thanks in advance for any insights or suggestions!

Hi, I built my app using vs code, how can I open/import to Xcode? The app is a simple game app.

When I start a Simulator (iPhone 13 mini) with iOS 26 and activate "Use the Same Keyboard Language as macOS", it still sets the keyboard to US (my Mac keyboard is in German). This makes the Mac keyboard unusable. It looks like a bug, because it clearly ignores the settings. When I type “@”, I get “¬”. Restarting the simulator did nothing, changing the settings back and forth also. BTW: Why does every single update of XCode come with a bug nowadays? I always have to spend half a day after an update to fix a problem I didn't have before. Highly frustrating.

I have an environment variable set in an xctestplan for a set of unit tests that I access like so: let testType = ProcessInfo.processInfo.environment[TARGET_TEST_TYPE_KEY] This is always is always returning nil when I run my unit tests in Xcode 26, but seems to work as expected in Xcode 16.4. Were there any changes in Xcode 26 that changes how this works? Thanks in advance.

My app start up has became horrid. It takes 1 minute to open SQLlite database for my rust core. Impossible to work... I have Address Sanitizer, Thread Perf Checker and Thread Sanitizer disabled...

For the last week, every Update to Latest Package Version ends with the error fatal: unable to access 'https://github.com/firebase/firebase-ios-sdk/': Failed to connect to github.com port 443 after 31891 ms: Couldn't connect to server. This could be firebase-ios-sdk or another package. The timeout in the example given is 31,891 ms, but it could be more than 75,000 ms. However, other packages from GitHub are updated without errors. The next attempt may return the same error with the same repository, or with a different one, while the repository from the previous attempt is updated normally. This only happens in Xcode; pure Git performs clones (with and without mirrors), fetching, pulling, and any other actions permitted without any error. What happened, and how can I restore normal package management? MacOS 26.0.1 xcode 26.0.1

The following C code shows different results when build in debug or release mode with Xcode 26.0.1. #include <stdio.h> static void print_fval(int16_t *src) { float fval = (float)((((int32_t)*src) << 16) - (1 << 31)); printf("fval: %f\n", fval); } int main(int argc, const char * argv[]) { int16_t i16[1] = { 0 }; print_fval(i16); return EXIT_SUCCESS; } In debug mode the output is: fval: -2147483648.000000. In release mode the output is: fval: 2147483648.00000. The 1 << 31 might be questionable but I would expect the same outcome in debug or release mode. The difference is in compiling with optimizations or not, compiler option -O0 vs any other optimization option. Would this be considered a compiler/optimizer bug? Older versions of Xcode (15.4 and earlier) do not have this problem.

Hi, It seems that the files that are added to a targets compilation list cannot be hardcoded. If the file doesn't exist in the file system then it cannot be added to the compilation list. If this is true then how are autogenerated files handled in Xcode. I want to autogenerate some code but since I can't add those files in to the project, the first compilation (that generates those files) always fails. This is especially problem in CI. How is I should handle this in Xcode

SceneDelegate's sceneWillEnterForeground and sceneDidEnterBackground methods are not called when app is moved to the background and back. It happens when Stage Manager is enabled and application is moved to the background using App Switcher (double tap on the home button). Otherwise methods are called. Started to reproduce since iOS26. Is not reproducible on iOS18.

Hi, I'm experiencing a super weird and unexpected issue using Icon Composer (Version 1.0 (40)) and Xcode 26 beta 7. I have an icon that includes some minimal text in the icon, as part of the branding of the app. The text is an SVG layer in Icon Composer. Icon Composer has no idea this is text, just a regular SVG layer. When I import the resulting .icon file into Xcode, it appears correct in the Xcode preview. However, when building the app and installing it on the iOS 26 simulator, the font of the text in the icon changes (to the system default font?). It is also cropped, cut off, and off-center. I replicated this with a simple standalone icon and clean project. Is anyone else seeing this?

I have been using the Mixpanel-Swift SDK alongside the Salesforce Mobile SDK in my iOS project with Xcode 16.4 without any issues. However, after upgrading to Xcode 26, I started encountering a problem related to SQLite3. Here is the relevant portion of my Podfile setup: platform :ios, '17.0' def required_pods source 'https://cdn.cocoapods.org/' source 'https://github.com/forcedotcom/SalesforceMobileSDK-iOS-Specs.git' use_frameworks! pod 'SalesforceAnalytics', '13.0.2' pod 'MobileSync', '13.0.2' pod 'SalesforceSDKCore', '13.0.2' pod 'SalesforceSDKCommon', '13.0.2' pod 'SmartStore', '13.0.2' pod 'Mixpanel-swift' end target 'Test' do required_pods end post_install do |installer| installer.pods_project.targets.each do |target| target.build_configurations.each do |config| config.build_settings['EXPANDED_CODE_SIGN_IDENTITY'] = "" config.build_settings['CODE_SIGNING_REQUIRED'] = "NO" config.build_settings['CODE_SIGNING_ALLOWED'] = "NO" config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '17.0' end end end Has anyone else encountered a similar issue or discovered a workaround? Any advice or solutions would be greatly appreciated. Thank you in advance!

I'm facing a build failure after migrating my project to Xcode 26. The issue appears to be related to the redefinition of some core system types. The compiler errors point to a failure to locate the original type definitions, suggesting they've been moved or renamed. Specifically, the build log contains these errors: ../arm64-apple-ios.private.swiftinterface:653:11: Cannot find type '_sys_select' in scope ../arm64-apple-ios.private.swiftinterface:130:33: Cannot find type 'netinet_in' in scope I've observed that the types are being mapped as follows: netinet_in.in_addr_t -> _DarwinFoundation2.in_addr_t _sys_select.fd_set -> _DarwinFoundation2.fd_set I'm looking for guidance on the recommended way to resolve these API changes. How should I handle these type redefinitions in Xcode 26 to ensure my project builds correctly? Any insights would be greatly appreciated. Thank you.

When I use the method provided in the document https://developer.apple.com/documentation/passkit/pkpasslibrary/activate(_:activationdata:completion:)?changes=_1__4,_1__4 to verify a card that has been added to Apple Wallet, I get an error code: 500 unknown error How can I troubleshoot the problem?

Hello there! In one of my apps, I noticed that the view hierarchy debugger isn't working anymore inside Xcode 26. So I created a new project, to see if it's just my project or Xcode. With the new project, it didn't happen. What can I do here? I already reported that issue. Here is the id of it: FB20605681

In my app target Foo, I have a dependency on package Bar. Bar itself have a dependency on another package Other. In my test target FooTests, I have a dependency on package BarTestsHelpers. BarTestsHelpers depends on Bar. When compiling test target FooTests, I get the following unexpected warning in Xcode 26 only: 'Bar' is missing a dependency on 'Other' because dependency scan of Swift module 'Bar' discovered a dependency on 'Other' I can see this is being discussed here as well without a solution. I filled a feedback with a sample project here: FB20602885 It seems that we can remove the warning by explicitly adding the dependency Other on BarTestHelpers. But this shouldn't be needed as BarTestHelpers doesn't use nor know about Other, it only needs it as part of its dependency on Bar.

I just downloaded xCode 26.0.1 and installed it overtop of my previous version of xCode (I don't know the version, but it was less than a year old). Everything was working fine with the previous version of xCode, but with v 26.0.1, I am getting the following popup error message when trying to install my app to some of my tethered devices: "Could not located developer disk image for this device" This occurs with an iPhone 7 with iOS 14.8 and an iPad Pro (1st gen) with iOS 13.5.1. Again, these devices had no problem launching an app from xCode while tethered prior to the v 26.0.1 install. I do have the following folders in the \Users\MyName\Library\Developer\xCode\iOS DeviceSupport folder: 12.4.1 (16G102) 12.4.1 (16...2) arm64e 13.5.1 (17F80) 14.4.2 (18D70) 14.6 (18F72) 14.7.1 (18G82) 14.8 (18H17) 15.0.2 (19A404) 15.1 (19B74) arm64e 15.3.1 (19D52) 15.3.1 (19...2) arm64e 16.1 (20B82) arm64e 16.3.1 (20...7) arm64e