Was working before, no longer working this week. Trying to sign in to my Claude Pro account via Xcode Intelligence. Goes to browser, I login, and accept authorization in Claude then redirect back to Xcode is reject. Everytime, multiple browsers, and even trying the add "/" that others have noted for other cases.

Hi. Our IT security team have flagged that on many developer machines they see a deprecated version of Python - 3.9.6. I've done some research on this and the general line is, feel free to upgrade the main version of Python on the Mac, but the version of Python which is internally used by Xcode (3.9.6) must be left unchanged. Our IT security team reached out to Apple and have received conflicting information as to if this Ruby 3.9.6 version can be upgraded. One response for example was "I asked my Solutions Engineer and he has come back with the following: We don’t include Python within macOS anymore, we install 3.9.6 with Xcode to support some of the internal tools - but there’s nothing preventing a customer updating that version: https://mac.install.guide/python/update". Does anyone know if it is possible to upgrade to a supported version? Kind regards, Kai.

Hi, On a 1920 points wide monitor, running maximized, Xcode 26.4 can't show more than 10 editor tabs at a time. Under the same conditions, Xcode 26.2 adapts tab widths to file names and fits 12-14 tabs. That's 2-4 more files I can see and access at a glance, without extra interaction. How can I get that level of information density back in the Xcode 26.4 editor tab bar? Screenshots Xcode 26.4 (10 tabs) Xcode 26.2 (12 tabs) Xcode 26.2 (14 tabs)

After updating to Xcode 26.4 the pasteboard sharing feature in the simulators doesn't work.

Hi everyone, I'm working in a strictly offline (intranet) environment and cannot use the standard online installation process to download and install the Claude Agent for Xcode. What I've tried: I manually copied the Agent binary/folder from an online machine to the following path: ~/Library/Developer/Xcode/CodingAssistant/Agents/Versions/26.3/claude The Issue: Even though the files are in the correct directory, Xcode fails to recognize the agent. It doesn't appear in the settings, and the Coding Assistant remains unavailable. Questions: Is there a specific metadata file (e.g., a .plist or .json index) that needs to be updated for Xcode to "see" the manually added agent? Are there any code signing or quarantine issues (like xattr) that need to be addressed when moving the agent between machines? Does anyone know if there are other dependencies or cache folders (besides ~/Library/Developer/Xcode/CodingAssistant/) that need to be synchronized? Environment: macOS: 26.3 (25D122) Xcode: 26.3 (17C519) Any guidance on the manual registration process for these agents would be greatly appreciated. Thanks!

Every time I touch (add a key, remove a key, even add a key, then remove it) the Strings Catalog .xcstrings file, it re-renders the entire file and creates a 18 thousand line dif. When I looked closer, it changes the whitespace before colons! "version": "1.0" "version" : "1.0" it does so for every JSON node. This makes the whole feature useless, because we wont be able to see what we changed upon code review (diff is unprintable in the github interface) and every time we change a single translation, we will be stacking 18k lines diff. Not to mention merge conflicts?

0 0x1001bd52c __assert_rtn + 252 1 0x100132054 void std::__1::__introsort<std::__1::_ClassicAlgPolicy, ld::AliasAddressOrderer&, ld::Atom const**, false>(ld::Atom const**, ld::Atom const**, ld::AliasAddressOrderer&, std::__1::iterator_traits<ld::Atom const**>::difference_type, bool) + 0 2 0x1001319a4 ld::LayoutLinkedImage::assignAtomOffsetsInSection(ld::SectionLayout&, unsigned int, bool) + 680 3 0x100136724 void dispatchForEach<ld::SectionLayout*, ld::LayoutLinkedImage::sortAtomsWithinSections()::$_0>(std::__1::span<ld::SectionLayout*, 18446744073709551615ul>, unsigned long, ld::LayoutLinkedImage::sortAtomsWithinSections()::$_0)::'lambda'(unsigned long)::operator()(unsigned long) const + 7852 4 0x19dca8aec _dispatch_client_callout2 + 16 5 0x19dca37f8 _dispatch_apply_invoke3 + 336 6 0x19dca8ad4 _dispatch_client_callout + 16 7 0x19dc91a60 _dispatch_once_callout + 32 8 0x19dca2938 _dispatch_apply_invoke + 252 9 0x19dca8ad4 _dispatch_client_callout + 16 10 0x19dcc59dc _dispatch_channel_invoke.cold.5 + 32 11 0x19dca113c _dispatch_root_queue_drain + 736 12 0x19dca1784 _dispatch_worker_thread2 + 180 13 0x19de47e10 _pthread_wqthread + 232 ld snapshot written at /tmp/****app.debug.dylib-2026-03-24-092748.ld-snapshot ld: Assertion failed: (aliasSectionNum == sectionNum && "alias and its target must be located in the same section"), function assignAliasAtomOffsetInSection, file Layout.cpp, line 4805. clang: error: linker command failed with exit code 1 (use -v to see invocation) I want to submit an ld-snapshot attachment, but the "Add File" function in the posting section won't let me add any files. My macOS was upgraded from version 16 to 26.3, and my Xcode was upgraded from version 16.1 to 26.3. Please help me resolve this as soon as possible, thank you.

[Reply to DTS Engineer] Thank you for looking into this. I have identified the root cause of the issue: it is a Bundle ID case-sensitivity mismatch. My parent app was approved as com.hayashikento.FocusPact (Capitalized), but I accidentally requested the Configuration Extension with a lowercase ID (com.hayashikento.focuspact...). This causes a "Prefix Mismatch" error in Xcode, preventing me from archiving the app. To fix this, I have just submitted a new entitlement request with the corrected capitalized ID: com.hayashikento.FocusPact.ShieldConfigurationExtension Since the core functionality was already approved under the lowercase ID, could you please expedite the approval for this capitalized version? This technical correction is the only thing blocking my TestFlight distribution. Thank you for your support!

I just installed Xcode 26.4 RC (17E192) yesterday and found that the documentation window now omits Foundation for me. Searching for "Date" finds the date property from GameKit, Core Data, ... but no Date type. I was previously using 26.4 beta and this was not the case. Is anyone else seeing the same thing?

Help please! I'm new to Xcode and my Mac is a 2021 MacBook Pro. I've downloaded Xcode recently (version 26.2) and wanted to preview and test my first App. But somehow, I just can't download the iOS simulator. People tell me that I can download resources from developer.apple.com, but I only found the iOS_18.2_runtime.dmg. I downloaded and installed the iOS 18.2 version but Xcode still requires to download the iOS 26.2 simulator. I don't know why and how to fix this problem. Please help!

I'm trying to use Xcode 26.3's official MCP Server (xcrun mcpbridge) on an Intel Mac（15.7.4）, but it crashes immediately. Run xcrun mcpbridge in Terminal： dyld[3809]: Symbol not found: _$s10AppSandbox17ASBBinaryIdentityC14teamIdentifierSSSgvg Referenced from: /Applications/Xcode.app/Contents/Developer/usr/bin/mcpbridge Expected in: /System/Library/PrivateFrameworks/AppSandbox.framework/Versions/A/AppSandbox [1] 3809 abort xcrun mcpbridge Observations The same command works on an Apple Silicon Mac (M1, macOS 26.3).

Hello, I have a critical issue regarding the "Family Controls (Distribution)" entitlement. My app "FocusPact" was approved for the entitlement, but there is a technical mismatch in the Bundle IDs that prevents distribution via TestFlight. [Current Situation] Parent App ID: com.hayashikento.FocusPact (Approved / Capitalized) Approved Extension ID: com.hayashikento.focuspact.ShieldConfigurationExtension (Approved / Lowercase) [The Issue] Due to the case-sensitivity difference (FocusPact vs focuspact), Xcode throws a "Bundle identifier prefix mismatch" error. Since the parent app identifier is already established as capitalized, I cannot change it to lowercase without breaking the existing configuration. [Request] I have submitted a new entitlement request with the corrected capitalized Bundle ID: Corrected Extension ID: com.hayashikento.FocusPact.ShieldConfigurationExtension Could a DTS engineer please help me synchronize the approved status to this capitalized ID? This is purely a technical correction of an already authorized functionality. Team ID: UHG4J7F7NH App Apple ID: 67591326449 Thank you for your assistance. I am a student developer eager to start MVP testing as soon as this is resolved.

Hello, I have a critical issue regarding the "Family Controls (Distribution)" entitlement. My app "FocusPact" was approved for the entitlement, but there is a technical mismatch in the Bundle IDs that prevents distribution via TestFlight. [Current Situation] Parent App ID: com.hayashikento.FocusPact (Approved / Capitalized) Approved Extension ID: com.hayashikento.focuspact.ShieldConfigurationExtension (Approved / Lowercase) [The Issue] Due to the case-sensitivity difference (FocusPact vs focuspact), Xcode throws a "Bundle identifier prefix mismatch" error. Since the parent app identifier is already established as capitalized, I cannot change it to lowercase without breaking the existing configuration. [Request] I have submitted a new entitlement request with the corrected capitalized Bundle ID: Corrected Extension ID: com.hayashikento.FocusPact.ShieldConfigurationExtension Could a DTS engineer please help me synchronize the approved status to this capitalized ID? This is purely a technical correction of an already authorized functionality. Team ID: UHG4J7F7NH App Apple ID: 67591326449 Thank you for your assistance. I am a student developer eager to start MVP testing as soon as this is resolved.

Since 26.4 beta 3 I've been having errors after a few hours of using Claude Agent. I get an error stating that I am not authed. If I go into Xcode settings, it still shows I am signed into Claude Agent. I have click sign out and then go through the whole auth process again to start using the agent again. This is on two separate computers. Is there anything I can do to stop this behaviour and stay logged in for longer? It worked fine in 26.3.

Just installed the new Xcode 26.4 RC build (17E192) after happily using 26.3 for a few months. I'm noticing some immediate regressions in the Intelligence features: Frequent losing of OAuth token (Claude Agent). This had previously been fixed and now is back. Agent "Thinking" is constrained to thought bubble windows, which are (a) too small to read, (b) not scrollable when thinking goes beyond a few paragraphs. Yes they are tappable when thinking is finished, but this doesn't help. Due to (2), in deep thinking, it's impossible to follow progress beyond the visible window, so impossible to know if the agent is going off the rails. I'm noticing just more general slowness to complete tasks. Not just complete them -- it seems like it takes longer to START tasks, which is really weird. It sits there thinking for longer. Same project, same model as before. Every time you tap "New Chat" it presents both Claude and Codex choices, even if you're only signed into one. This turned a simple single tap into now a required two taps. Overall this feels like a frustrating setback after a very positive user experience in 26.3.

I've got a Project with a bunch of frameworks, each of which has a static library version of itself (for compiling command-line tools that also use the code). Compiling the frameworks goes fine. Compiling one of the static libraries (A Mime-parsing framework) is giving me the rather odd message that a bunch of symbols are ambiguous, but the ambiguity resolves to the same symbol in the error-message... ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.m:57:18: error: reference to 'E3_SMIME_ENVELOPED_DATA' is ambiguous 57 | case E3_SMIME_ENVELOPED_DATA: | ^ In file included from ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.m:9: ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.h:17:2: note: candidate found by name lookup is 'E3_SMIME_ENVELOPED_DATA' 17 | E3_SMIME_ENVELOPED_DATA, // Enveloped data | ^ In module 'E3Mime' imported from ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.h:8: ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.h:17:2: note: candidate found by name lookup is 'E3_SMIME_ENVELOPED_DATA' 17 | E3_SMIME_ENVELOPED_DATA, // Enveloped data | ^ ... and again ... ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.m:62:18: error: reference to 'E3_SMIME_SIGNED_DATA' is ambiguous 62 | case E3_SMIME_SIGNED_DATA: | ^ In file included from ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.m:9: ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.h:18:2: note: candidate found by name lookup is 'E3_SMIME_SIGNED_DATA' 18 | E3_SMIME_SIGNED_DATA, // Signed data | ^ In module 'E3Mime' imported from ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.h:8: ~/src/E3Mail/Frameworks/E3Mime/E3Mime/Message/MIME/E3AppPkcs7Part.h:18:2: note: candidate found by name lookup is 'E3_SMIME_SIGNED_DATA' 18 | E3_SMIME_SIGNED_DATA, // Signed data | ^ ... and again, etc ... . No file inside the module (neither .m or .h) includes the module-header, the definition of the offending symbols looks like: // // E3AppPkcs7Part.h // E3Mime // #import <E3Mime/E3CryptoContext.h> #import <E3Mime/E3MimePart.h> #import <E3Mime/E3MimeMultipartEncrypted.h> NS_ASSUME_NONNULL_BEGIN typedef enum { E3_SMIME_COMPRESSED_DATA, // Compressed data E3_SMIME_ENVELOPED_DATA, // Enveloped data E3_SMIME_SIGNED_DATA, // Signed data E3_SMIME_CERTS_ONLY, // Only certificate data E3_SMIME_UNKNOWN, // Que ? } E3SMimeType; ... And when I click on the error adornment in the editor pane, the errors disappear. It still won't build the project, though. I just get the same errors the next time I press CMD-B. Can't upload a short screen-capture of that, so I put it the movie at http://0x0000ff.co.uk/mov/phantom-errors.mov.

I am trying to preview my SwiftUI views but Xcode Preview Canvas failing. I tried everything that I found at internet but nothing works. Finally I created a new iOS project that contains only a view import SwiftUI struct ContentView: View { var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Hello, world!") } .padding() } } #Preview { ContentView() } Even this view cannot be previewed The error is Simulator was shutdown during an update Simulator [3E0DB935-C4C2-4566-BA48-8E21564C207C] failed to boot and may have crashed. I tried to restart xCode, restart Mac, download ios 26.0 sdk and created a simulator with that sdk but nothing helped. Do you have an idea?

When working in parallel on 2 projects (i.e. a server and a client app project). The Claude Code agents in those projects should be able to communicate with each other to improve the flow of information (i.e. changes in models, DTOs). The developer should supervise the communication and can block, if necessary.

This just started happening today out of nowhere. Instead of only the project I’m working on appearing in Source Control, every project inside my Xcode projects folder is now showing up in the Source Control navigator. This is happening in both the Changes and Repositories tabs.

I would like to have the option to keep my xcode project open regardless of closing all tabs using cmd + w.