Demystify code signing and its importance in app development. Get help troubleshooting code signing issues and ensure your app is properly signed for distribution.

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unzip identifier is not unique?
In Swift I'm using unzip by launching a Process to unzip a file. I added a launchRequirement to the process in order to make sure the executable is code signed by Apple and the identifier is com.apple.unzip. After testing out my code on another machines (both physical and virtual), I found out that in some the identifier is actually com.apple.zipinfo, which broke the SigningIdentifier requirement. It's safe to assume that /usr/bin/unzip can be trusted since it's in a System Integrity Protection (SIP) location, but I'm wondering why this executable has different identifiers?
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Aug ’25
How to renew "Developer ID Application" certificate?
How do you renew a "Developer ID Application" certificate? Should there be a "renew" button on the expiration date? Or can you renew it sooner? Or are you required to create a new certificate? Does this count against your limit of five Developer ID Application certificates? I thought there was a way to renew it, but I don't see that option. I also couldn't find any Apple documentation about how to renew, only how to create and how there's a limit to how many you can create.
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how to handle setup for NFC without NDEF & PACE and still support iOS 15.0
We have NFC capabilties enabled for our app ID - com.uob.mightyvn but our minimum deployment target is 15.0. We do not have an option deselect PACE from provisioning profile. Hence, the validation is failed for IPA. Invalid entitlement for core nfc framework. The sdk version '18.2' and min OS version '15.0' are not compatible for the entitlement 'com.apple.developer.nfc.readersession.formats' because 'NDEF is disallowed'
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Notarized but Gatekeeper fails macOS 15 only?
Okay, I just pushed a release and notarized. Works great on my test laptop (macOS 26.2) and my test desktop (macOS 14.x) But it seems to fail for a friend who's running macOS 15. I've been using the same GitHub actions successfully for months. How can notarization work for macOS 14 and 26, but not for macOS 15? I think everything looks okay as far as the signing? I've checked codesign -dvv Executable=/Applications/Avogadro2.app/Contents/MacOS/Avogadro2 Identifier=cc.avogadro Format=app bundle with Mach-O thin (arm64) CodeDirectory v=20500 size=11607 flags=0x10000(runtime) hashes=352+7 location=embedded Signature size=8986 Authority=Developer ID Application: Geoffrey Hutchison (…..) Authority=Developer ID Certification Authority Authority=Apple Root CA Timestamp=Feb 5, 2026 at 8:47:21 PM Info.plist entries=24 TeamIdentifier=….. Runtime Version=15.5.0 Sealed Resources version=2 rules=13 files=3306 Internal requirements count=1 size=172 And from spctl -a -vv /Applications/Avogadro2.app: accepted source=Notarized Developer ID origin=Developer ID Application: Geoffrey Hutchison (….)
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URGENT: Multiple Notarization Submissions Stuck "In Progress" 5+ Days - Blocking Release
Hi Apple Developer Relations / Notary Service Team, CRITICAL: All notarization submissions stuck "In Progress" since Feb 1, 2026 (5+ days). Blocking product release. Latest (PRIORITY): 9bf1e3ca-33ed-4185-816c-2e06ff539f25 Stuck submissions: a9f1abf6-04a1-462c-b7d1-91e834b44c1a 94a172f8-4aa6-475c-a7ec-fd83c8cfc49a e2c033da-a1d0-480c-a3b5-5401a8dd3d03 eecefd87-8bf9-496c-86c8-c6f0d6a550e0 b1d27d30-7111-4cc7-9f0e-3f44aac43a97 Details: Team ID: JA8C8B5W34 App: 323MB DMG (codesign verified) notarytool log: "not available" (In Progress) Status page: Green Requests: Process 9bf1e3ca-33ed-4185-816c-2e06ff539f25 Queue status / ETA? @Quinn or Notary team - production blocker!
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MusicKit entitlement consistently missing from generated Ad Hoc Profile despite App Services configuration
Hi everyone, I am attempting to generate an Ad Hoc provisioning profile for my iOS app that includes MusicKit capabilities, but the generated .mobileprovision file consistently lacks the required entitlement, despite the configuration appearing correct in the developer portal. The Issue: I have enabled MusicKit under the "App Services" tab for my App ID. I have saved this configuration, verified it is checked in the UI, and then regenerated and downloaded my provisioning profile. However, when I inspect the internal contents of the .mobileprovision file, the Entitlements dictionary does not contain the com.apple.developer.music-kit key. It only contains the standard keys (Team ID, App ID, etc.). Steps Taken: Created a brand new App ID to rule out legacy data issues. Explicitly enabled "MusicKit" under the App Services tab for this new identifier. Created a fresh Ad Hoc Distribution profile linked to this new ID. Downloaded the profile and inspected the file structure: the MusicKit entitlement is completely absent. Attempted toggling the service off and on, saving, and regenerating the profile multiple times. Has anyone experienced a specific bug where "App Services" (like MusicKit) fail to propagate to the Provisioning Profile generator? Is there a secondary "Capability" (e.g., Media Library) that must also be enabled to trigger the inclusion of the MusicKit entitlement? Any guidance would be appreciated.
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Signed App Opens But Doesn't Recognise Plugin
I have been trying to package a FileMaker 18 runtime app* for Mac distribution for - oh - a year and a half on and off (the Windows version was packaged in an afternoon). I succeeded - or thought I had - until I updated to Tahoe. Now my packaging process does everything it did formerly (creates the DMG, etc.), but when opened, fails to see/load a third-party plugin (BaseElements.fmplugin). Does anyone know why this should be? I have attached 4 of my build files in the hope that someone can point me in the right direction. Thanks in advance for any advice you may provide. Regards, L *Claris deprecated the runtime feature years ago, but it still runs and is useful for proof of concept. P.S. A contributor to an earlier query kindly suggested I go down the zip file or pkg installer route, rather than the DMG route. I tried doing as much but found both as susceptible to Mac spaghetti signage. build_all.txt repair_and_sign.txt build_dmg.txt notarize_dmg.txt
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Signed app can't be verified
I've signed an app, zipped it, and uploaded it to github. When I download it on another Mac, I get "it can't be opened because it could not be verified for malware". But on that computer, I can verify it with codesign, and it appears to be correct (as far as I can tell). I can copy/paste the app from my other Mac, and that copy will run without problem. sys_policy, however, gives: Notary Ticket Missing File: ReView.app Severity: Fatal Full Error: A Notarization ticket is not stapled to this application. Type: Distribution Error This is the same for the copy that runs, and the copy that doesn't. The difference between them appears to be a quarantine xattr. I can delete this, and the app launches without incident. Is this expected? Why should a signed app be quarantined just because it's been downloaded? The whole point of paying the fee is to avoid the security obstacles...! ;-)
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Feb ’26
Running iOS app on MacOS error: This app cannot be installed because its integrity could not be verified.
The attached file bellow contains the full error error I clone this repo to my mac, change team id and group, and run it in Xcode: https://github.com/protonpass/ios-pass There's no issue when I ran it with the Debug configuration, but when I go to Product > Scheme > Edit Scheme and change the iOS target build configuration to Release then I got that error above. I have tried Archive and export the ipa, verify that the provisioning profile contains my Mac UDID, but when double clicking the ipa to install, I also got the error This app cannot be installed because its integrity could not be verified.
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Jul ’25
Notarization: "Team isn't configured for notarization"
I've tried to notarize my app recently and got the error:{ "logFormatVersion": 1, "jobId": "...", "status": "Rejected", "statusSummary": "Team is not yet configured for notarization", "statusCode": 7000, "archiveFilename": "myapp.dmg", "uploadDate": "2019-06-20T06:24:53Z", "sha256": "...", "ticketContents": null, "issues": null }I've never heard about "team configuration for notarization" previously. What are the steps to resolve that issue?Thanks in advance.
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Jan ’26
First app for me - stuck on Notarization
Hey there! Thanks so much for all the great posts about this topic! I'm fairly new to Mac development since a few months back, and I've been really impressed with Apple's developer tools and ecosystem so far. It's been an exciting journey building for macOS! However, I've hit a bit of a roadblock with the notarization process via direct download and would really appreciate some guidance from you more experienced developers. I understand that Apple has built a well-designed automated system to maintain high security for users, but I'm wondering: What's the normal timeframe for notarization to complete? What are usually the most common reasons if it takes longer than expected? Is there anyone at Apple who can help if the process gets stuck? I'm really excited to launch my app and continue developing for this amazing platform, so any tips from experienced Apple developers would be hugely appreciated! Thanks in advance! 🙏
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Jan ’26
Support for Non-Team ID prefixes on the Mac App Store
My iOS version of the app is available on the App Store with a non-team ID prefix for its bundle ID. It has been available there for a long time and I am not sure why I chose a custom prefix for it. The Mac version of the same app is available on the Mac App Store with a different bundle ID and with a prefix that matches my team ID. I am currently looking to "merge" both apps into a single bundle ID. The plan is to stop using the current Mac app and release a new one as a universal app under the existing bundle ID for the iOS app. Unfortunately, it looks like that the Mac App Store does not actually allow any submissions that have a non-team ID for a prefix. I know that it is a very specific case but any suggestions would be welcomed.
Topic: Code Signing SubTopic: General
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Jul ’25
pkgbuild giving signing identity error
The actual error: pkgbuild: error: Could not find appropriate signing identity for “Developer ID installer: My Name (DeveloperID)”. I'm trying to sign a program written with gfortran. The steps worked the last time (Mar 23) I built this code. The steps to error: a) xcrun notarytool store-credentials --apple-id "xxx" --team-id "yyy" Giving Profile Name zzz and App-specific password b) codesign --force --timestamp --options=runtime -s "Developer ID Application: My Name (yyy)" AppName c) pkgbuild --root ROOT --identifier org.aaa.bbb --version "1.1.1" --sign "Developer ID installer: My Name (yyy)" AppName.pkg ROOT contains the package contents At this point I get the error pkgbuild: error: Could not find appropriate signing identity for “Developer ID installer: My Name (yyy)” Are there steps that have changed. Any suggestions? Thanks, David
Topic: Code Signing SubTopic: General Tags:
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Jan ’26
"Provisioning profile does not allow this device" on Sequoia 15.2 VM
After upgrading the virtual machines used for building and testing our macOS application, it seems that something new in Sequoia is preventing virtual machines from running anything signed with a Mac Development certificate. At first glance the issue seems very similar to this thread, but it could be unrelated. We are using the tart toolset to build and run our VMs. People seem to be having related issues there with Sequoia in particular. I have added the VM's hardware UUID to the Devices list of our account. I have included that device in the devices list of our Mac Development provisioning profile. I have re-downloaded the profile, ensured that it is properly getting built into the app, and ensured that the hardware UUID of the VM matches the embedded provisioning profile: Virtual-Machine App.app/Contents % system_profiler SPHardwareDataType | grep UUID Hardware UUID: 0CAE034E-C837-53E6-BA67-3B2CC7AD3719 Virtual-Machine App.app/Contents % grep 0CAE034E-C837-53E6-BA67-3B2CC7AD3719 ../../App.app/Contents/embedded.provisionprofile Binary file ../../App.app/Contents/embedded.provisionprofile matches However, when I try to run the application, it fails, and while I have searched the system logs to find a more informative error message, the only thing I can find is that the profile doesn't match the device somehow: Virtual-Machine App.app/Contents % open ../../App.app The application cannot be opened for an unexpected reason, error=Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0x6000039440f0 {Error Domain=NSPOSIXErrorDomain Code=153 "Unknown error: 153" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}} Virtual-Machine App.app/Contents % log show --info --debug --signpost --last 3m | grep -i embedded.provisionprofile 2025-01-21 16:33:32.369829+0000 0x65ba Error 0x0 2872 7 taskgated-helper: (ConfigurationProfiles) [com.apple.ManagedClient:ProvisioningProfiles] embedded provisioning profile not valid: file:///private/tmp/builds/app/.caches/Xcode/DerivedData/Build/Products/Debug/App.app/Contents/embedded.provisionprofile error: Error Domain=CPProfileManager Code=-212 "Provisioning profile does not allow this device." UserInfo={NSLocalizedDescription=Provisioning profile does not allow this device.} I don't understand why the provisioning profile wouldn't allow the device if the hardware UUID matches. I have also attempted to add the Provisioning UDID in the devices list instead, but the form rejects that value because it's a different format (the form specifically requests a hardware UUID for macOS development, and a provisioning UDID for everything else). If there is any debugging tool that lets me check a provisioning profile against the running hardware and print a more verbose reason for why it's not allowed on the device, please let me know. Otherwise I'd have to conclude that, since I haven't experienced this issue before on an earlier OS, it has something to do with virtual machines running macOS Sequoia. (The same Mac Development-signed application runs just fine on my MacBook Pro running 15.2, as well as the VM host, which is also running 15.2.) I have also tried resetting the VM's hardware UUID and adding that one to the devices list, to no effect. This is obviously seriously impacting our CI/CD pipelines to allow for proper UI testing of our application. If anyone is aware of any workarounds, I would love to hear them!
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Jul ’25
The notarization system seems broken
The process has been stuck "In Progress" for 8 days now. We had a scheduled New Year Offer for our software that would run based around this important new update, and obviously we missed it because of this crazy issue. Notarization used to take a few seconds. Now it does not work, neither on my newly set up Mac, nor in my old (completely unchanged) one. My company and finances are totally frozen at this point due to this issue. PLEASE help, look into my actual account and do what is needed!
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Family Controls Distribution Entitlement Request Taking Longer Than Expected - Any Tips?
Hi everyone, I'm hoping someone can share their experience or offer advice on entitlement request timelines. I previously had two bundle IDs approved for an app I'm testing via TestFlight - both were approved within a few days. I recently submitted a request for a third bundle ID (JMSHRM8W5J), and after realizing I may not have included enough detail, I submitted a follow-up request (XS2QYC59UU) with more context. It's now been almost three weeks, which is significantly longer than my earlier approvals - though I recognize some of that time included the holidays. A few questions for the community: Has anyone experienced longer wait times for additional entitlements on an existing project (with approved entitlements)? Did submitting a second request help or potentially slow things down? Is there anything I should include in a request to improve chances of quick approval? Any insight would be appreciated. Thanks!
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Jan ’26
Notarizing macOS software
Hi everyone!! I am submitting an App for Notarization for the first time, I have several attempts, some returned invalid and other show In Progress for more than 8 hours. Is that normal? I addressed the issues that make the other ones Invalid. Thanks so much!
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Jan ’26
Legacy Team ID prevents adding AppClip
My iOS app was created with a legacy Team ID in 2011. When I try to add an AppClip to the app, the Team ID on the AppClip is the new Team ID. Xcode prevents the build from completing. The com.apple.developer.parent-application-identifiers entitlement (null) of an App Clip must match the application-identifier entitlement ('TYXXXXXP2.com.it-guy.MyApp') of its containing parent app. How can this be resolved? Can the AppClip Team ID be changed in "Identifiers" on the developer.apple.com?
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Jan ’26