I've seen a couple posts on reddit today but wanted to call out here because I think it may be a more widespread issue - I keep getting an error trying to open my iOS app saying "Unable to verify app - An internet connection is required to verify trust of the developer...". I have never gotten this issue before and did not change anything in my build settings from my last successful build of the app to now. The directions it gives me are to go to Settings > General > VPN and Device Management and trust my developer certificate from there, but that doesn't work either. The first time I tried this, the developer certificate wasn't there at all, then I looked at Reddit and saw people recommending to download the developer certificate to solve the issue, but doing this did not fix the error either. Just looking to see if anyone else has encountered this or what the fix might be.

I used to develop iPhone apps about a decade ago and am now back at it with an iPhone and companion Apple Watch app. Why does it suck so bad? I a must be doing something wrong, but what I am doing is out of the box. The majority of the time when I go to build on the watch I get: Previous preparation error: A connection to this device could not be established.; Timed out while attempting to establish tunnel using negotiated network parameters. Which I then first try to force quit the app on the watch and if that does not work, reboot the watch (which is pretty ridiculous). I tried Gemini and it gave me the following explanation: This is arguably the single most frustrating error in the entire watchOS development ecosystem. As an expert, I can tell you that you are not doing anything wrong; you are fighting a fragile architecture. Here is the technical breakdown of why this happens and a workflow to mitigate it without constant reboots. The Technical "Why" This error message reveals that the issue lies in the CoreDevice (and formerly usbmuxd) infrastructure, specifically in the secure transport layer. The "Tunnel" Failure: Xcode attempts to establish a secure, encrypted tunnel (DTXConnection) to the Apple Watch to push the debugger and the app binary. Unlike the iPhone, which can sustain a high-bandwidth connection easily, the Watch aggressively manages its radios (Bluetooth vs. WiFi vs. AWDL) to save battery. The "Handshake" Timeout: If the Watch is on Bluetooth (Low Energy) when Xcode initiates the tunnel, the bandwidth is insufficient. The system tries to escalate the connection to WiFi (or Apple Wireless Direct Link). If this negotiation takes even a few milliseconds too long—due to 2.4GHz interference, router mDNS configuration, or the Watch CPU being throttled—the handshake times out. The "Previous Preparation Error": This is the insidious part. Once the handshake fails once, Xcode’s device service caches that failure state for the device UUID. It marks the device as "unreachable" to prevent the IDE from hanging indefinitely on subsequent tries. Why you see it constantly: You aren't actually triggering a new connection attempt; you are hitting the cached "failed" state immediately. Unfortunately, the solutions it gives me are: The "Wired Proxy" Method (Most Reliable) This is the gold standard for watchOS debugging. Do not rely on "Connect via Network" for the Watch directly if you can avoid it. Disable WiFi on your Mac (temporarily) or ensure the Mac and iPhone are on the exact same SSID. Plug your iPhone into the Mac via USB. Ensure the Watch is paired to that iPhone. Result: Xcode will tunnel the instructions through the USB connection to the Phone, and the Phone acts as a high-bandwidth proxy to the Watch. This eliminates the "Mac-to-Watch" WiFi negotiation failure point. Do you hit this regularly? What do you do to make for a smooth development and deployment process? Or is it really this fragile? Thanks for any help! Bryan

Dear Xcode Team, Please consider adding an option to position the Coding Assistant on the right side of the editor. Currently, when the assistant panel is open, it makes it difficult to access the Project Navigator at the same time. Having the ability to move the Coding Assistant to the right side would allow developers to keep the Project Navigator visible while interacting with the assistant, improving workflow and efficiency. Thank you

When building our project for Mac Catalyst with Xcode 26.2, we get this warning almost a hundred times, once for every object file: directory not found for option '-L/var/run/com.apple.security.cryptexd/mnt/com.apple.MobileAsset.MetalToolchain-v17.3.48.0.UZtKea/Metal.xctoolchain/usr/lib/swift/maccatalyst' Somehow, every Link <FileName>.o build step got the following parameter, regardless if the target contained Metal files or not: -L/var/run/com.apple.security.cryptexd/mnt/com.apple.MobileAsset.MetalToolchain-v17.3.48.0.UZtKea/Metal.xctoolchain/usr/lib/swift/maccatalyst The toolchain is mounted at this point, but the directory usr/lib/swift/maccatalyst doesn't exist. When building the project for iOS, the option doesn't exist and the warning is not shown. We already check the build settings, but we couldn't find a reason why the linker is trying to link against the toolchain here. Even for targets that do contain Metal files, we get the following linker warning: search path '/var/run/com.apple.security.cryptexd/mnt/com.apple.MobileAsset.MetalToolchain-v17.3.48.0.UZtKea/Metal.xctoolchain/usr/lib/swift/maccatalyst' not found Is this a known issue? Is there a way to get rid of these warnings?

While WhatToTest..txt was being used in xcode cloud. I wish this feature should just being adopted to functioned from XCode archive and upload to set initial release note from the build pipeline directly from xcode in machine

Hello! I'm new to xcode and am developing an iOS app. I hit the following error when build my app: MY_SHA no identity found Command CodeSign failed with a nonzero exit code I have generated my certificate through xcode. I can see the Certificate and the private key in Keychain -> login. But it's not that private key is under the Certificate. They are listed in parallel. The certificate appears in Certificate tab but not in My Certificate Tab. Would that matter? security find-certificate -a -Z | grep -A1 "Apple Development" Gives me the certificate. But security find-identity -v -p codesigning give 0 valid identity found. Could you help me figure out what could be the reason for this? I've been stuck for several days now. Thank you so much!

Hi everyone, I am struggling with a persistent issue regarding my Developer Program membership and Xcode syncing. Even though the Apple Developer Portal shows that my developer license is active and I have full access to App Store Connect, it is unfortunately not possible to sign applications with this account. It behaves as if the license wasn't active. The Symptoms: -Portal status: Active (Account Holder/Admin), -Xcode Settings: When I navigate to Settings > Accounts and select my team, there is a Red X displayed next to "Certificates, Identifiers & Profiles.", Xcode suggests there is an issue accessing these resources and I cannot sign any binaries. Confirmed the membership is active in the web portal. Everything seems configured correctly on the web side, but the account simply doesn't work locally in Xcode. Has anyone faced this specific "Red X" issue despite a valid membership? Is there a specific cache I need to clear or a way to force Xcode to re-fetch the correct status? Any advice on how to resolve this loop would be greatly appreciated. Thanks! :)

In Xcode 26.3 and 26.4, when I use Xcode's built-in git functionality to do a "pull" or "fetch", Xcode presents a dialog saying it's performing the operation, but it never completes. The dialog remains on screen with a spinner. My remote repos are stored on a Mac mini on my local network and I access them via SSH. The git command line works fine, as does the tool Git Tower. I've filed this as FB22091014. Has anyone else seen this, and if so, found a solution?

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.

In my tabview i set a safeAreaBar topPanel, under i have contentview. That ignore safeArea.top so feed go under. What is the best Way to have a the first post in content appear under (under the bottom) if the safeareabar. I use list with foreach. Do we measure the height or is it some smart tips?

Currently it's Sonnet 4.5. I know that 4.6 is out.

Hi everyone, I want to avoid the iOS 26 Liquid Glass effect in my app’s UI. While researching, I found the following possible solution: Steps: Go to Info.plist Add the key: UIDesignRequiresCompatibility Type: Boolean Value: YES I have a few questions about this approach: According to the Apple Developer website, this seems to be a temporary solution. How long will this continue to work, and what would be the recommended long-term solution? Which iOS versions does this support (both older and upcoming versions)? If this method is not recommended, is there another way to disable or avoid the glass effect across the entire app without making major UI changes? Any guidance or suggestions would be greatly appreciated. Thank you!

Hello everyone, I’m facing an issue with my app submission being stuck in “Waiting for Review.” I initially submitted my app on 21 February and waited until 27 February, but the review process did not start and there were no updates. On 27 February, I contacted Apple Support regarding this issue, but I did not receive any response. Since there was still no progress, on 4 March I removed the app from review and resubmitted it again, but it is still showing “Waiting for Review.” This delay is affecting my operations, so I would really appreciate any guidance or help if someone has experienced a similar situation. App ID: 6741708449 Thank you.

Can't able to run the Create ML for training and I upgraded to MacOS 26.3 beta and I have tried older and newer

Development environment: MacBook pro Apple M1 macOS Tahoe 26.2 (25C56) Xcode 26.x iPhone 6 Plus / iOS 12.4.4 Exception description: After I upgraded to Xcode 26, my iPhone 6 Plus had a system version of 12.4.4. I was unable to perform real-device debugging, whether for existing projects or new ones. The error message from Xcode was as follows: Could not launch “xxx” Domain: IDEDebugSessionErrorDomain Code: 3 Failure Reason: Cannot launch '/private/var/containers/Bundle/Application/A44062C1-32F5-4346-B13C-FC3F39EAF7A1/xxx.app': Unspecified Even though I have already added device support for the iOS 12.4 Has Xcode 26 stopped supporting the debugging of any devices running iOS 12 system?

Hi, I’m facing a consistent simulator boot issue that appears to start after iOS 18.2 simulator runtimes and persists in 18.6, 26.1, and 26.2. Observed behavior iOS 18.2 simulator works fine iOS 18.6 simulator does NOT boot iOS 26.1 / 26.2 simulators do NOT boot Tried everything reinstall/clear cache and all and event formatted the system Unable to boot the Simulator NSPOSIXErrorDomain Code: 4 Failure Reason: Interrupted system call Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding macOS: Sequoia Xcode: 26.1, 26.2 Machine: Apple Silicon Unable to boot the Simulator. Domain: NSPOSIXErrorDomain Code: 4 Failure Reason: Interrupted system call User Info: { DVTErrorCreationDateKey = "2025-12-26 02:19:27 +0000"; IDERunOperationFailingWorker = "_IDEInstalliP.honeSimulatorWorker", Session = "com apple CoreSimulator.SimDevice CCDECA56-4A59-491B-A830-0F3928FCD957"; } Failed to start launchd_sim: could not bind to session, launchd_sim may have crashed or quit responding Domain: com.apple.SimLaunchHostService.RequestError Code: 4 Event Metadata: com.apple. dt. DERunOperationWorkerFinished : { "device_identifier" = "CCDECAE6-4A59-491B-A830-0E3928FCD957"; "device_model" = "iPhone18, 1"; "device_osBuild" = "26.1 (23B86)"; "device_osBuild_monotonic" = 2301008600; "device_os_variant" = 1; "device_platform" = "com apple.platform.iohonesimulator"; "device_platform_family" = 2; "device_reality" = 2; "device_thinningType" = "iPhone18,1"; "device_transport" = 4; "launchSession_schemeCommand" = Run; "launchSession_schemeCommand_enum" = 1; "launchSession_targetArch" = arm64; "launchSession_targetArch_enum" = 6; "operation_duration_ms" = 1183; "operation_errorCode" = 4; "operation_errorDomain" = NSPOSIXErrorDomain; "operation_errorWorker" = "_IDEInstalliPhoneSimulatorWorker"; "operation_error_reportable" = 1; "operation_name" = IDERunOperationWorkerGroup; "param_consoleMode" = 1; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com apple platform Please help on this as it got stuck. Thanks

I'm building an app which runs around the Foundation model framework. My expected output is generated when testing on a real device or in preview in Xcode but it throws Foundation Model error when I try running it on the simulator. I'm using a Macbook M1 air and have apple intelligence turned on and my simulator run destination is also an iPad Pro M5 (26.0). Any solution for this as this is my submission for the SSC so I need to make it work on the simulator iPad. Thank you👾

Hello! I have a web extension I've written to Google Chrome and Mozilla Firefox. It's made up of simple files. The extension (content.js) A manifest (manifest.json) file which explains the extension The icon (icon.png) Apple has developed App Store Connect / Xcode Cloud specifically for this. I upload those three files as a zip. I move it over to TestFlight for testing and then select Distribution to put it through Apple Review. This is my entire process. I have been doing this for 4+ months and Apple reviewed my application and put it up. I have then gone through 13 subsequent reviews (ALL POSITIVE) and have gone through version upgrades for months, no issue. On the 15th review, they want me to change the name of my application. I have done that in the content.js, the manifest.json, and anywhere that allows me to change it in App Store Connect. There is apparently one more place they want it changed. This is on the App Information / General Information tab, specifically the "BundleID". The tip on that field says: The bundle ID must match the one you used in Xcode. It can't be changed after you upload your first build. Or, I am not understanding what their issue is or what else I can change. I was told by Review team I must use XCODE to change this. I tell them I don't use XCode (they demand now I use Xcode, which seems completely irrelevant here and a red herring The tooltip itself says I can't change it anyway? Has anyone been told after they released their application they have to change their name later on in life?

Hello, I've been searching online for ways to remedy this issue for the past 3 days and this is my last resort. The Issue Build on device fails to connect to the device. The prompt will permanently be stuck loading in that screen. Finder is able to connect to the device, just that Xcode is unable to. Xcode does prompt for passcode on the device, and I have entered it accordingly. I note that i AM on VPN, but even disabling VPN and turning off Wifi does not fix the issue. This was working until several days ago. Not sure what the issue is. Fixes Attempted Tried with a different cable, and USB ports Tried with different devices (multiple devices both iPad and iPhone has the same issue) Turn Off and On developer mode on devices. Clear Trusted Computers on devices. Updating both devices to the latest iOS version. Quitting Xcode Clearing derived cache Restarting Macbook Updating to the latest iOS version on Macbook Reinstalling Xcode toggling signing certificates I was trying other fixes like "pkill usbmuxd", but since I am on corporate hardware, i will be required to escalate it if i require sudo permissions. Is anyone able to provide a concrete solution or explanation why this happens?

I have been getting the following error intermittently (once it happens, then its consistent) when I try to build my app Showing Recent Errors Only Unable to resolve build file: BuildFile<b11862f281fd8c8287d499b4f0922a9c61c95323d2196ba877ed344a02baffbb> (The workspace has a reference to a missing target with GUID '0c7e19da3805e0a412c717704d4549fc25560b498add930cbef9623bd9afb53a') There have been no changes to my project (git status is clean). I have tried cleaning DerivedData as well, but it did not help. How am I supposed to figure out from the GUID what is it that xcode is trying to find?