All is fine in Xcode15, no LLDB errors whatsoever, but in Xcode16 I can't get any variable displayed in the console because of the following error:
error: type for self cannot be reconstructed: type for typename "$......." was not found (cached)
error: Couldn't realize Swift AST type of self. Hint: using `v` to directly inspect variables and fields may still work.
I've checked the output of swift-healthcheck and there are several messages like this:
SwiftASTContextForExpressions(module: "ROA", cu: "ROA+ViewLayer.swift")::LoadOneModule() -- Missing Swift module or Clang module found for "UIKit", "imported" via SwiftDWARFImporterDelegate. Hint: Register Swift modules with the linker using -add_ast_path.
I added -add_ast_path to the OTHER_LDFLAGS in the faulty module's build settings but no luck.
How can I debug my project in Xcode16?
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I am facing a recurring issue with Xcode iOS simulator. I want to preview a SwiftUI for iOS in Xcode, but the Simulator app fails to boot up.
I receive the follow error in Xcode:
Cannot Preview in this file. Simulator was shutdown during an update.
I have tried the following:
Deleting Xcode cache
Reinstalling iOS Simulator runtimes
Completely uninstalling Xcode and deleting all developer data, then reinstalling
None of the above steps fix the problem. The only fix I have found is to completely reinstall MacOS 15.4.1. THIS IS TERRIBLE!
I have already reinstalled MacOS 15.4.1 once to fix the issue, and I don't want to do it again. If there is another solution, please help me find it!
Thank you!!
I failed to download Metal toolchain for Xcode Beta 5.
Downloading in Settings -> Components didn't work so I tried in terminal but didn't work too.
/tmp xcodebuild -downloadComponent metalToolchain -exportPath ~/Downloads
Beginning asset download...
2025-08-07 16:38:44.867 xcodebuild[91064:2244768] Writing error result bundle to /var/folders/bb/xtdv2kgn6rq3zxqs4f8f1j4w0000gn/T/ResultBundle_2025-07-08_16-38-0044.xcresult
xcodebuild: error: Failed fetching catalog for assetType (com.apple.MobileAsset.MetalToolchain), serverParameters ({
RequestedBuild = 17A5295f;
})
Topic:
Developer Tools & Services
SubTopic:
Xcode
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
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 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.
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
Out of nowhere I got some red banner on top of my iPhone 13 mini / iOS 17.5. I cannot pin point the root cause of this. What I can say is that it only happens to Simulators of a certain type, e.g. iPhone 12 and 13 mini, but not iPhone 14 for example.
I have installed Xcode 26.1.0 and 26.1.1, out of which 26.1.0 is selected:
$ xcode-select -p
/Applications/Xcode-26.1.0.app/Contents/Developer
And following runtimes:
$ xcrun simctl runtime list
== Disk Images ==
-- iOS --
iOS 17.5 (21F79) - CF933623-A258-44F8-B248-C0F25C0C343B (Ready)
iOS 26.1 (23B80) - D11C3CDC-EE3D-44CC-8B92-9B7D00B54B0B (Ready)
Total Disk Images: 2 (14.6G)
Installing the newer 26.1 23B86 runtime doesn't help either.
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 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.
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.
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.
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.
Summary :
I tried everything from uninstalling completely XCODE to upgrading the macOS without any success.
Cleanup Xcode & Upgrade macOS to 15.3.1
This scripts were used to clean up the xcode and residual files. Also used CleanMyMac for the rest !
VERSION="" # "-16.2.0"
## Xcode Deep Clean
# 1. Delete Xcode Itself
sudo rm -rf /Applications/"Xcode${VERSION}".app
# 2. Remove Xcode Cache and Derived Data
sudo rm -rf ~/Library/Caches/com.apple.dt.Xcode
sudo rm -rf ~/Library/Developer/Xcode
sudo rm -rf ~/Library/Application\ Support/Xcode
sudo rm -rf ~/Library/Developer/CoreSimulator
sudo rm -rf ~/Library/Developer/Shared
# 3. Remove Command Line Tools (CLT)
sudo rm -rf /Library/Developer/CommandLineTools
# 4. Remove Xcode Preferences and Supporting Files
sudo rm -rf ~/Library/Preferences/com.apple.dt.Xcode.plist
sudo rm -rf ~/Library/Logs/CoreSimulator
sudo rm -rf ~/Library/Saved\ Application\ State/com.apple.dt.Xcode.savedState
# 5. Remove Simulator Data
sudo rm -rf ~/Library/Developer/CoreSimulator
# 6. Remove Swift & Code Completion Models
sudo rm -rf ~/Library/Application\ Support/Developer/Shared/Xcode
sudo rm -rf ~/Library/Application\ Support/Xcode
Problem :
When i try to press the button "Get" from Xcode -> Settings -> Components i receive systematically these issues :
For Predictive Code Completion Model :
The operation couldn’t be completed. (IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $11b3c5a90).DownloadError error 2.)
Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $11b3c5a90).DownloadError
Code: 2
User Info: {
DVTErrorCreationDateKey = "2025-02-20 2:36:06\U202fPM +0000";
}
--
There was an error transferring over the network.
Domain: IDELanguageModelKit.IDEModelDownloadAdapter.(unknown context at $11b3c5a90).DownloadError
Code: 2
--
System Information
macOS Version 15.3.1 (Build 24D70)
Xcode 16.2 (23507) (Build 16C5032a)
Timestamp: 2025-02-20T15:36:06+01:00
For Platform Support (ex. iOS 18.2 + iOS 18.3.1 Simulator)
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
User Info: {
DVTErrorCreationDateKey = "2025-02-20 2:24:03\U202fPM +0000";
}
--
Download failed.
Domain: DVTDownloadableErrorDomain
Code: 41
--
Failed fetching catalog for assetType (com.apple.MobileAsset.iOSSimulatorRuntime), serverParameters ({
RequestedBuild = 22D8075;
})
Domain: DVTDownloadsUtilitiesErrorDomain
Code: -1
--
Download failed due to a bad URL. (Catalog download for com.apple.MobileAsset.iOSSimulatorRuntime)
Domain: com.apple.MobileAssetError.Download
Code: 49
User Info: {
checkConfiguration = 1;
}
--
System Information
macOS Version 15.3.1 (Build 24D70)
Xcode 16.2 (23507) (Build 16C5032a)
Timestamp: 2025-02-20T15:24:03+01:00
More Details :
By the way im on a MacBook Pro with M1 Max 32GB and 1TB storage. I still have more than 100 GB of Storage. I also switched to RJ45 to be sure its not network issue !
Topic:
Developer Tools & Services
SubTopic:
Xcode
I have a project that leverages XPC and has interoperability between Swift and Objective-C++. I am presently getting a compile-time error in one of our unit test targets, of "Argument passed to call that takes no arguments" on the following code:
let interface = NSXPCInterface(with: XPCServiceDelegate.self)
My XPCServiceDelegate protocol is defined as:
@objc(XPCServiceDelegate) public protocol XPCServiceDelegate {
//...
}
For the longest time, this code has compiled successfully, and it has not recently changed. There are two confusing things about this error. The first is that I have a different build scheme that will compile correctly other code with the same structure. The other is that I have team members that are able to compile my failing scheme successfully on the same XCode version, OSVersion, and branch of our repository.
I've attempted numerous things to try to get this code to compile, but I've run out of ideas.
Here's what I've tried:
Clean build both on XCode 16.4 and XCode 26 Beta
Delete DerivedData and rebuild on XCode 16.4 and XCode 26 Beta
Delete and re-clone our git repository
Uninstall and reinstall XCode
Attempt to locate cached data for XCode and clear it out. (I'm not sure if I got everything that exists on the system for this.)
Ensure all OS and XCode updates have been applied.
The interface specification for NSXPCInterface clearly has an initializer with one arguement for the delegate protocol, so I don't know why the compiler would fail for this. Is there some kind of forward declaration or shadowing of NSXPCInterface? Do you have any ideas on what I could try next?
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?
Hello everyone! I found that the Xcode Cloud workflows under my project are completely stuck. The tasks that are already running cannot be completed. Newly started tasks remain in the queued state forever and cannot be canceled. They are consuming my usage quota 😢. Has anyone else encountered the same issue?