Build, test, and submit your app using Xcode, Apple's integrated development environment.

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Certificates, Identifiers & Profiles not showing for team
Hello, we are struggling for hours with the following issue: I have an individual developer account and since yesterday I'm member of developer team with an own organization account. I have access to an app in the team account as an "App-Manager", also the option "Access to Certificates, Identifiers & Profiles" is activated and I can see that it is activated for my account in AppstoreConnect. In "Apple Developer" I can also see the team and can switch to. But then I do not see the "Certificates, Identifiers & Profiles" menu entry. Also the team is not showing up in XCode. What am I missing? Thanks and regards Philipp
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Oct ’25
iOS 26: FloatingBarContainerView overlapping the whole custom ViewController
Hi everyone: I'm experiencing an issue in iOS 26. I've implemented a custom ViewController. It's super simple to edit images with flip, crop, zoom in, and zoom out. My question is that it seems very strange to me. It works without problems in iOS 17.5 and iOS 18. However, when I try to run it with iOS 26, the entire ViewController seems disabled; it doesn't recognize touches or anything. When I checked the UI hierarchy, I saw a strange FloatingBarContainerView overlaying the entire ViewController. I searched the documentation for information about this view, but I couldn't find anything. Any help on how to hide or remove this view in iOS 26? This hasn't been implemented anywhere.
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Oct ’25
Xcode Devices "Download Container" no longer works on latest Xcode 26.0 (24228) (Build 17A324)
After updating my Xcode to the latest, I am unable to download an installed app container from the Xcode Devices screen. This currently works with older versions of Xcode with the same app on the same iPad. This worked with older versions of Xcode on the same MacBook as well (including the Xcode 26 beta before updating to the official release yesterday) The specified file could not be transferred. Domain: com.apple.dt.CoreDeviceError Code: 7000 User Info: { DVTErrorCreationDateKey = "2025-09-18 20:31:01 +0000"; NSURL = "file:///Users/thomsk2/Desktop/com.test.polarisdev%202025-09-18%2015:30.53.744.xcappdata/AppData/Library/Caches/"; } The specified file could not be transferred. Domain: com.apple.dt.CoreDeviceError Code: 7000 User Info: { NSURL = "file:///Users/thomsk2/Desktop/com.test.polarisdev%202025-09-18%2015:30.53.744.xcappdata/AppData/Library/Caches/"; } Failed to perform I/O operations. Domain: com.apple.dt.remoteservices.error Code: 11001 Failure Reason: Cannot open destination file /Users/thomsk2/Desktop/com.test.polarisdev 2025-09-18 15:30.53.744.xcappdata/AppData/Library/Caches/com.apple.dyld/standaloneapp.ios.dyld4: Permission denied System Information macOS Version 15.6.1 (Build 24G90) Xcode 26.0 (24228) (Build 17A324) Timestamp: 2025-09-18T15:31:01-05:00
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Oct ’25
Unable to Download iOS 26 Simulator Runtime – “invalid signature (code or signature have been modified)” Error
When attempting to download the iOS 26 simulator runtime from Xcode → Settings → Platforms, the process fails with the following error: (-67061 invalid signature (code or signature have been modified) Domain: SimDiskImageErrorDomain Code: 5 User Info: { unusableErrorDetail = ""; } Even after manually importing other runtimes (e.g., iOS 18.2), they do not appear under Xcode → Product → Destination, and the simulator list remains empty. System Information: macOS: 26.0.1 (Build 25A362) Xcode: 26.0.1 (24229) (Build 17A400) Processor: Intel Core i5 (Intel-based Mac) The error occurs consistently each time I try to download the runtime, preventing Xcode from adding the iOS 26 simulator. No third-party tools or manual modifications were made to Xcode. What I’ve Tried: Restarted Xcode and macOS Cleared DerivedData and simulator cache Verified Xcode path via xcode-select -p Imported iOS 18.2 runtime manually using: xcodebuild -importPlatform "iOS_18.2_Simulator_Runtime.dm Reset CoreSimulator service and re-created simulators via xcrun simctl Despite all of this, no simulator appears in Xcode’s destination list, and I keep getting the signature validation error when trying to download iOS 26 from Xcode.
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Oct ’25
The app contains one or more corrupted binaries. Rebuild the app and resubmit.
I have been trying to update an app of which the code base hasn't changed in two years. It still builds fine and runs fine, on simulator and device, but... when uploading it to Testflight I get the error "The app contains one or more corrupted binaries. Rebuild the app and resubmit.". I have been rebuilding like a maniac, trying to look at what could be wrong with the binary, I let ChatGPT misguide me on the log files, I think I have tried everything... but to no avail. Any ideas how I could find out what goes wrong?
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Oct ’25
Validation error, when I try to upload a game to Testflight
Hello everyone and thank you for you're time! I got an issue with uploading several icons to testflight. I'm using Game Maker Studio as my engine for the game. This is the error that I'm getting, even when I try to use the old icons for the game, that worked in the past. I tried to transform the icons, using this site "https://makeappicon.com/", but I still got the same validation error. Can you help me fixing the issue - thank you so much!
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Oct ’25
SF symbols not rendering in swiftui views
Summary: The minus.capsule and minus.capsule.fill SF Symbols do not render in my project. Other SF Symbols (e.g., plus.capsule and minus.circle) render correctly in the same context. Steps to Reproduce 1. Add an Image(systemName: "minus.capsule") or Image(systemName: "minus.capsule.fill") to a SwiftUI view. 2. Run the app on the latest macOS. Expected Result The minus capsule symbols should render consistently, similar to plus.capsule. Actual Result minus.capsule and minus.capsule.fill do not render at all. Additional Testing • Replaced minus.capsule with minus.circle: renders correctly. • Swapped the right-hand plus.capsule symbol in my slider with minus.capsule: the symbol fails to render in that position as well. That rules out clipping or layout issues.
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130
Oct ’25
App icon produced by Xcode 26 is 1 MB bigger than Xcode 16
When comparing the Assets.car file of the previous and current versions of my app, compiled with Xcode 16 and 26, respectively, with the Terminal command assetutil --info MyApp.app/Contents/Resources/Assets.car I see that the new version contains many more app icons at different sizes, increasing my app's size by 1 MB (not much, but considering that the app is only 6 MB in total...): { "AssetType" : "MultiSized Image", "Name" : "AppIcon", "NameIdentifier" : 6849, "Scale" : 1, "SHA1Digest" : "9D75F76992E9E9E5531A214A4AE282EBD381F7EB903024E00FB25EB42381CC45", "SizeOnDisk" : 308, "Sizes" : [ "16x16 index:1 idiom:universal", "32x32 index:2 idiom:universal", "64x64 index:3 idiom:universal", "128x128 index:4 idiom:universal", "256x256 index:5 idiom:universal", "512x512 index:6 idiom:universal", "1024x1024 index:7 idiom:universal" ] } The previous one allowed me to add only two sizes: { "AssetType" : "MultiSized Image", "Name" : "AppIcon", "NameIdentifier" : 6849, "Scale" : 1, "SHA1Digest" : "AC782A2FFF9A4B2D563EF64DF41A179583440560F8732A176A8376B31000368E", "SizeOnDisk" : 248, "Sizes" : [ "256x256 index:1 idiom:universal", "512x512 index:2 idiom:universal" ] } Is there a way to only ship the strictly necessary app icons sizes while using Xcode 26 Icon Composer, or will all the sizes be required going forward?
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Oct ’25
Document-based app: file picker flickers since macOS 26 update
Description: Since updating to Tahoe, the file picker dialog briefly flickers immediately after opening in my document-based app. This behavior did not occur on macOS Sequoia. Rhe issue does not appear in TextEdit, but it does occur in Paper (a writing app) and Kaleidoscope. Based on this, it seems to affect third-party document-based apps that use standard open panels. Steps to Reproduce: 1. Launch a third-party document-based app. 2. Open the file picker (e.g., via “Open…”). 3. Observe a brief flicker as the dialog appears. Expected Result: The file picker dialog should open smoothly without flickering. Actual Result: The file picker dialog flickers briefly right after appearing. Notes: • Issue introduced in macOS Tahoe. • Not reproducible in macOS Sequoia. Reported through Feedback Assistant: FB20522119
Topic: UI Frameworks SubTopic: SwiftUI Tags:
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Oct ’25
"Cannot connect to App Store" when trying to purchase subscription using Xcode built app
I'm developing an app and I think I've implemented what I need to in the swift code. However, when I click the Purchase button in my app, I see "Cannot connect to App Store" when the App Store app opens. Attached are images showing how I've configured the Sandbox user. What am I doing wrong? I expect to be able to do a fake purchase to test subscription activation in the app, but it doesn't work.
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Oct ’25
Could not install myapp on Testflight. Happend to all my builds and apps.
Hello, I uploaded my application to TestFlight via Xcode (React Native), but I cannot install it on my device or other testers' devices(Internal). This happened to all builds, all my apps and all tester's I have faced this error before, but after sending a support ticket, it was resolved. But this time, it's come back. I don't know why.
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Oct ’25
macOS 26.0 Tahoe + Xcode 26.0.1 Simulator causes system-wide audio distortion
After upgrading to macOS 26.0 Tahoe and Xcode 26.0.1, I’ve noticed an issue with audio playback whenever the iOS Simulator is running. Device: MacBook Pro 13" (2020, Intel, 16GB RAM, 500GB SSD) Issue: Any sound played on the Mac (system sounds, music, videos) begins to break/distort once the Simulator is active. App Sounds: If the app running inside the Simulator plays audio, that audio also breaks/distorts. Previous Version: This issue did not occur on macOS Sequoia 15 or with Xcode 16. Everything was working fine before the upgrade.
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Oct ’25
xcodebuild -exportLocalizations Fails Due to Cross-Platform Dependencies
I'm working on a large multi-platform iOS project (iOS, iPadOS, watchOS, tvOS, visionOS) and have successfully migrated from legacy .strings files to modern String Catalogs (.xcstrings). However, I'm unable to export localizations using xcodebuild -exportLocalizations due to cross-platform framework dependency issues. (Note: I did have AI help me write this question, so apologies in advance for any errors) Project Structure Main iOS/iPad app with multiple extensions watchOS companion app tvOS app visionOS app 49 .xcstrings files successfully migrated across all targets Uses Swift Package Manager for modularization The Problem When attempting to export localizations using xcodebuild -exportLocalizations, the build fails because it tries to build all targets across all platforms, including watchOS targets that depend on third-party xcframeworks that don't include watchOS slices: xcodebuild -exportLocalizations \ -project MyProject.xcodeproj \ -scheme MyApp \ -localizationPath ./export \ -configuration Debug Error: error: While building for watchOS, no library for this platform was found in 'Frameworks/<incompatible>.xcframework'. (in target 'Target') These frameworks cannot be modified to add watchOS support (third-party/legacy dependencies). What Works vs. What Doesn't Works: Building the iOS app through Xcode GUI Fails: Exporting localizations through Xcode GUI (Product → Export Localizations...) Fails: xcodebuild -exportLocalizations with any combination of flags Attempted Solutions (All Failed) Platform-specific destination: xcodebuild -exportLocalizations -destination "generic/platform=iOS" ... SDK constraint: xcodebuild -exportLocalizations -sdk iphoneos ... Excluding architectures: xcodebuild -exportLocalizations EXCLUDED_ARCHS="armv7k arm64_32" ... Build first, then export: xcodebuild build -scheme MyApp -sdk iphoneos && \ xcodebuild -exportLocalizations ... All approaches still attempt to build watchOS targets despite platform constraints. Observations The -exportLocalizations flag appears to ignore -destination and -sdk flags It seems to scan and build ALL schemes/targets in the project regardless of constraints Regular builds (xcodebuild build) work fine with platform constraints Current Workaround I created a Python script that parses .xcstrings JSON files directly and generates XLIFF output, which works but feels like it's bypassing Apple's intended workflow. Questions for Apple Is there a way to limit xcodebuild -exportLocalizations to specific platforms? The documentation doesn't mention any flags for this, and -destination/-sdk appear to be ignored. Why does -exportLocalizations require building ALL targets across ALL platforms? Both the Xcode GUI (Product → Export Localizations) and xcodebuild -exportLocalizations fail with identical build errors, suggesting this is by design. Is there a reason localization export can't be limited to buildable targets? Is the intended workflow to have ALL targets buildable across ALL platforms before exporting localizations? This seems impractical for multi-platform projects with platform-specific dependencies. Are there any build settings or configuration options that can exclude specific targets/platforms from the localization export scan? Is directly parsing .xcstrings files and generating XLIFF an acceptable alternative, or does this miss important metadata that -exportLocalizations would include? Environment Xcode 16.x / 26.x (reproduces on both) macOS Tahoe Project uses String Catalogs (.xcstrings) format Mixed SPM packages and traditional target structure Any guidance on the correct approach for multi-platform localization export would be greatly appreciated. Is this a known limitation, or is there a recommended pattern I'm missing?
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Oct ’25
XCode 26: is it possible to remove the preinstalled iOS Platform via xcodebuild?
Hi, as described by the subject, I'm trying to find a way to remove the preinstalled iOS support via command line tool. I need to do that because I need to use the universal architectureVariant in order to build on old Intel-based iOS Simulators, but on iOS 26. As described in this page, I can use this command to download the architecture I need xcodebuild -downloadPlatform iOS -architectureVariant universal however, launching this command I receive this error iOS is already downloaded as arm64Only. To replace with universal, first delete the existing one. Is there any way to remove the current installed iOS platform via command line? In particular I'm serching for a way to do what the button "Delete" in the attached screen does. Thank you
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Oct ’25
Embed/Do Not Embed & Mach-O type
My Xcode project has the following configuration: 1 iOS app target 1 Xcode framework target (mach-o-type "Dynamic Library") 5 static libraries Dependencies: All the static libraries are target dependencies of the framework. The framework is the only target dependency of the iOS app. For the iOS app target, within the General tab > Frameworks, Libraries & Embedded content, I've set the framework as "Do not embed" So now I have a dynamic framework which won't be copied to the .app bundle in the build output. As per my understanding, this should result in a runtime error, dyld should not be able to find the framework files as they were not embedded in the final .app bundle. But regardless, my app runs without any errors, using all the methods exposed by the framework. What is the correct understanding here? What exactly does Embed/Do not embed mean (apart from excluding the files from .app bundle) When both settings are specified, is there any priority or precedence of one setting over the other?
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Oct ’25
Xcode 26 on macOS 26 with a Dark theme in Light Mode
Is anyone else using one of the "Dark" editor themes (such as "Default (Dark)" or "Classic (Dark)" in Xcode? And is anyone doing this with Xcode 26 on macOS 26? Here's the result while using the "Default (Dark)" theme while my Mac is in "light" mode: Note that the black background of the editor goes all the way to the far left edge of the Xcode window. The large gray area in the project tree is the black background bleeding through the sidebar. This is really distracting. Is there a way to fix this (besides not using a dark theme - I've been using dark themes for over 30 years)? This appears to be a poor design decision in macOS 26 to have split views show the background of the secondary column behind the primary column. iPadOS 26 has the same issue (see https://developer.apple.com/forums/thread/800073).
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Oct ’25
Ensure that macOS-only SwiftPM project main & test source builds via swift, xcodebuild & Xcode
I want to ensure that the main & test source of my macOS-only SwiftPM project (on GitHub at mas) builds via swift, xcodebuild & Xcode. For builds of clean clones of the main branch (i.e. no locally edited files, no existing .build or .swiftpm folders, etc.): The swift command line below builds main & test fine: swift build --build-tests The xcodebuild command line below doesn't seem to run the SwiftPM MASBuildToolPlugin (which generates a Swift file necessary for the build), which is setup for the project in Package.swift, so neither main nor test build: xcodebuild -scheme MAS -destination "platform=macOS,arch=$(arch),variant=macos" How can I get xcodebuild to run my MASBuildToolPlugin, or to run an equivalent? In Xcode, building main works fine, so Xcode must run the SwiftPM MASBuildToolPlugin. Building test, however, fails with the following error: No such module 'MAS' If I capitalize the name of the executable in the following line in Package.swift from: products: [.executable(name: "mas", targets: ["MAS"])], to: products: [.executable(name: "MAS", targets: ["MAS"])], Then Xcode can compile the tests. That, however, sets the generated executable file's name to MAS, but I want it to be mas. How can I use MAS for the package/module/target/etc. names in the source, but generate an executable file named mas? I obviously can rename the executable after it has been generated by running mv MAS mas, but would the upper-case name be incorrectly used anywhere inside the executable? I assume not. Also, I'd prefer to setup my project properly, instead of using a file renaming hack.
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Oct ’25
Does Xcode 26 Still Support Pull Requests?
Does Xcode 26 still support creating pull requests and/or viewing comments from GitHub pull requests associated with the current branch? This used to be possible, but I cannot get it to work with the current version of Xcode (26.0.1). The "Create Pull Request" menu item takes me to github.com directly, instead of presenting a nice UI menu; hence I'm wondering.
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Oct ’25