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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The binary file is getting quarantined (com.apple.quarantine) while downloading onto another system even though it's digitally signed by a developer ID and notarised.
We are using SHC to compile on macOS to convert the .sh script to a binary file. This binary file is then digitally signed by the Apple developer account and then notarised. After that, it will work on the same system where we follow this process. But if we share this file to another system, then it gets quarantined (com.apple.quarantine) while downloading. Is there any way to prevent it by getting quarantine on another system or something I'm missing, any clues?
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498
Feb ’25
Xcode 16.2 cannot sign developer app (AppKit) after upgraded to macOS 15.3
After I upgraded to macOS 15.3, all of my current Xcode project have the signing issue, I spent half day and I didn't make any progress, I tried two projects, one is Swift AppKit App calling one C++ dylib, another one is a pure Swift AppKit app, when I build, there will be error: Warning: unable to build chain to self-signed root for signer "Apple Development: Steven Tang (XXXXX)" /Volumes/TwoTSSD/steventang/Library/Developer/Xcode/DerivedData/ImageEnhancement-ddbilgyraofrdyfeljyuknusunza/Build/Products/Release/ImageEnhancement.app: errSecInternalComponent I tried remove account, add account back in Xcode, none of it worked, also tried ChatGPT's WWDR updating and it won't help.
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1.3k
Feb ’25
Urgent: xcrun notary submit Stuck - Notarization Process Halted
Hi everyone, Native Instruments is encountering a critical issue with the notarization process. The xcrun notary submit command appears to be stuck and is not completing, preventing us from notarizing our apps. Specifically, the command hangs indefinitely. This issue started today. We've already tried the following troubleshooting steps: Cancelling and re-running the command Checking my internet connection Checking the Apple System Status page Cleaning the build folder using a different machine This is a major blocker for our company, as it's preventing from from us from testing and releasing some of our products. It seems to be a similar issue as reported in https://developer.apple.com/forums/thread/772542?page=2. Has anyone else experienced xcrun notary submit getting stuck like this? Any insights or suggestions would be greatly appreciated. I'm particularly interested in knowing if there are any known issues with the notarization service currently. Details about my setup: Xcode Version: 16.1 macOS Version: 14.7.1 App Type: macOS app Thanks in advance for your help!
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522
Feb ’25
Unable to install Audio App Extension on iOS Device
I keep getting this error when trying to install Audio app extension. Everything is reviewed from certificates to profiles, for some reason CreatingCustomAudioEffects sample is deployed correctly but when Creating new Project (Audio Extension App) from new project Option, it doesn't work at all. If I remove Extension from Frameworks and deploy app, then no problem but then App crashes as extension is missing. Something wrong with Xcode? I am pretty sure it used to build new projects but not anymore. Failed to verify code signature of /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.0k1RXy/extracted/AudioUnitsAppExtensionTest.app : 0xe8008015 (A valid provisioning profile for this executable was not found.) Please ensure sure that your app is signed by a valid provisioning profile. If this issue persists, please attach the following when sending a report to Apple: A sysdiagnose from this Mac A sysdiagnose from the device failing installation An IPA of the app failing installation
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636
Feb ’25
Unable to sign .app file with Developer ID installer certificate
I am using matlab to create an application (.app) using matlab application compiler. Along with that, I use matlab to create an installer for that. Unfortunately, the installer is in (.app) format. So do some custom things to install the dependencies and copying my application to Applications folder. I am able to sign the original application with Developer ID application certificate. But I am not able to sign the installer in .app format with Developer ID installer certificate. Is there any flag in any signing executable that allows me to use Developer ID installer certificate to sign .app file instead of typical (.pkg/.dmg)? Any help would be much appreciated.
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406
Feb ’25
Cosign issue
I am a new macOS developer, and the codesign issue is persistent. I've been trying to resolve it for days. There are two issues: 1.) When downloading and installing frameworks, they are not showing up in Xcode templates. 2.) Regarding codesigning, even though I've installed it on my external drive and placed it in various locations (Library, Templates, Frameworks, Application Contents, macOS Templates and Frameworks) and added through General Libraries in Xcode, persistently encountering issues. I'm experiencing a codesign problem. I've cleaned the build, cleared derived data, downloaded certificates, added them to the access key, and linked the binary. However, the issue persists. Please help me, as this is making the process much more difficult. I've been stuck on this for weeks.
Topic: Code Signing SubTopic: General
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338
Feb ’25
Notarised app crashing, build app not crashing
I have an app that only crashes once it's been notarised. I read a few posts that essentially said before trying to identify issues by reviewing the crash report I should ensure signing and notarisation has happened correctly. I've worked through the document "Resolving common notarization issues" spctl -vvv --assess --type exec: gives no errors and correctly returns my developer id. codesign -dvv: returns a timestamp My app uses a hardened runtime. My app shows up in Xcode as a macOS Archive (e.g not a Generic Xcode Archive) Here is the crash report. Translated Report (Full Report Below) Process: Scene Finder [44479] Path: /Users/USER/Downloads/Scene Finder.app/Contents/MacOS/Scene Finder Identifier: Version: 0.9 (20250206.1) Code Type: ARM-64 (Native) Parent Process: launchd [1] User ID: 501 Date/Time: 2025-02-11 13:09:03.7786 +1000 OS Version: macOS 15.3 (24D60) Report Version: 12 Anonymous UUID: EE8B1269-0A8A-3AB6-516B-C752E8A18B5A Sleep/Wake UUID: 436CD7CF-7B13-4A9C-9425-7EF94CC007A9 Time Awake Since Boot: 98000 seconds Time Since Wake: 9524 seconds System Integrity Protection: enabled Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: Namespace SIGNAL, Code 6 Abort trap: 6 Terminating Process: Scene Finder [44479]
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446
Feb ’25
Export archive for app-store distribution command: 'xcodebuild -exportArchive -archivePath ...' exited with non-zero exit-code: 70
Hi, I have a project that integrates the Firebase SDK via SPM as a dependency of an internal Swift Package: My app ⟶ My Library ⟶ Firebase SDK The project builds successfully and can be archived locally ✅. The uploaded .ipa is valid and gets published 🚀. However, we are now trying to automate the release process using Xcode Cloud, but the iOS Archive action is failing ❌ on Xcode Cloud. The logs show the following error ⬇️: error: exportArchive codesign command failed (/Volumes/workspace/tmp/XcodeDistPipeline/XcodeDistPipeline.~~~oomCvM/Root/Payload/base-ios.app/Frameworks/FirebaseAnalytics.framework: replacing existing signature /Volumes/workspace/tmp/XcodeDistPipeline/XcodeDistPipeline.~~~oomCvM/Root/Payload/base-ios.app/Frameworks/FirebaseAnalytics.framework: invalid or corrupted code requirement(s) Requirement syntax error(s): line 1:178: unexpected token: <COMPANY_NAME> ) ** EXPORT FAILED ** I have been researching this issue for a while and have tried several solutions to fix it, but with no luck. Even though the error points to a specific library—the Firebase SDK—I don’t believe Firebase is the root cause. There were related issues in the past, but those were already fixed by the Firebase team, and as I mentioned, the project archives correctly when built locally. On the other hand, the error states: line 1:178: unexpected token: <COMPANY_ACRONYM> This makes me wonder if there’s an issue parsing our Team Name during the re-signing process, as it contains special characters ": "name": "Apple Distribution: Company Full Name "COMPANY_ACRONYM""
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680
Feb ’25
Best Practices for Maintaining Long-Term Validity of Signed XCFrameworks
I am developing and distributing an XCFramework, and I want to ensure that it remains valid for as long as possible. I have some questions regarding certificate expiration and revocation: I understand that if an XCFramework is signed with a timestamp, it remains valid even after the signing certificate expires. However, if the signing certificate is revoked, the XCFramework immediately becomes unusable. As far as I know, Apple allows a maximum of two active distribution certificates at the same time. I assume that once a certificate expires, it will eventually need to be revoked in order to issue a third certificate. Is this correct? If an expired certificate is later revoked, will the XCFrameworks signed with that certificate also become invalid, even though they were timestamped? I want to ensure that released XCFrameworks remain valid for as long as possible. What is the best approach to achieve this? If anyone has insights or official documentation references on how to manage signing certificates for long-term XCFramework validity, I would appreciate your guidance. Thank you!
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428
Feb ’25
LaunchCodeRequirement alternatives
Hello! I've just recently discovered LaunchCodeRequirement API and I'm exploring how it works compared to existing alternatives available for macOS versions below 14.4. Some questions I have with regards to safety of older and newer APIs examining the given example: func runProcess(executableURL: URL) throws { let process = Process() process.executableURL = executableURL if #available(macOS 14.4, *) { process.launchRequirement = try LaunchCodeRequirement.allOf { ValidationCategory(.developerID) SigningIdentifier("some-signing-identifier") TeamIdentifier("some-team-identifier") } } else { try secStaticCodeCheckValidity(executableURL) // Point #1 } do { try process.run() // Point #2 if #available(macOS 14.4, *) { // process.launchRequirement should take care of the process // and kill it if launchRequirement constraint is not satisfied } else { try secCodeCheckValidity(process.processIdentifier) // Point #3 } process.waitUntilExit() } catch { process.terminate() throw error } // Point #4 guard process.terminationReason == .exit else { throw SomeError() } } let requirement = """ anchor apple generic and identifier = "some-signing-identifier" and certificate 1[field.1.2.840.113635.100.6.2.6] and certificate leaf[field.1.2.840.113635.100.6.1.13] and certificate leaf [subject.OU] = "some-team-identifier" """ func secStaticCodeCheckValidity(_ executableURL: URL) throws { // Init SecStaticCode from `executableURL` // Init SecRequirement from `requirement` let flags = SecCSFlags(rawValue: kSecCSBasicValidateOnly) guard SecStaticCodeCheckValidityWithErrors(code, flags, secRequirement, nil) == errSecSuccess else { throw CodeSignError() } } func secCodeCheckValidity(_ processIdentifier: Int32) { // Init SecCode from `processIdentifier` // Init SecRequirement from `requirement` guard SecCodeCheckValidityWithErrors(code, [], secRequirement, nil) == errSecSuccess else { throw CodeSignError() } } Before macOS 14.4+ flow There's still a small chance that between checking executable binary codesign requirement (Point #1) and launched process' one (Point #3) the binary could be replaced with something malicious and even get some CPU between Points #2 and #3 so technically it can't be 100% safe. Is that a correct statement? Any advices on making it safer? macOS 14.4+ flow Now let's see how launchRequirement is better. I guess initialized launchRequirement gets evaluated on running the process (Point #2). What does it exactly check? Executable at URL before launching the process (as OnDiskConstraint) or launched process (as ProcessConstraint)? Is there any chance the process gets some CPU before it's killed in case of failed codesign check? Any way to distinguish between codesign requirement termination and other reasons at point #4? It returns SIGKILL (9) as terminationStatus but it's not precise enough to be sure it was killed due to failed requirement check. I guess newer SecStaticCodeCheckValidityWithOnDiskRequirement & SecCodeCheckValidityWithProcessRequirement are the same as SecStaticCodeCheckValidityWithErrors & SecCodeCheckValidityWithErrors but a little simpler and can't be used as a 'more secure' way of validating codesign requirement. Thanks, Pavel
Topic: Code Signing SubTopic: General
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561
Feb ’25
Application terminated by gatekeeper on Apple silicon mac
I have a .NET 6 application that runs in the background. The installer is a .pkg file built using a third-party tool called "Packages". All .dylib and executable files are codesigned before packaging. The resulting .pkg file is notarized. The app uses these entitlements: com.apple.security.cs.allow-jit com.apple.security.cs.allow-unsigned-executable-memory com.apple.security.cs.allow-dyld-environment-variables com.apple.security.cs.disable-library-validation The app is built on a macbook Air 2015 running macOS 12.6 and it works without issues on that machine. On a macbook Pro M3 running macOS 14.6.1 the app fails to run even though the installation itself is successful. The only logs that I was able to find are related to syspolicyd (4 warnings): Unable to apply protection to app: 45, PST: (vuid: A78FF6C2-08D5-4DCC-B946-8836251AA0E7), (objid: 1873967), (team: (null)), (id: (null)), (bundle_id: (null)) Failed to register app bundle for protection: 45, PST: (vuid: A78FF6C2-08D5-4DCC-B946-8836251AA0E7), (objid: 1873967), (team: (null)), (id: (null)), (bundle_id: (null)) scan failed, finishing evaluation : PST: (vuid: A78FF6C2-08D5-4DCC-B946-8836251AA0E7), (objid: 1873967), (team: (null)), (id: (null)), (bundle_id: (null)) Terminating process due to Gatekeeper rejection: 95158, Unfortunately, verification commands such as sudo codesign --verify --deep --strict -vvv MyApplication.App spctl -a -vvv -t install MyApplicationInstaller.pkg do not indicate any issues. Are there any additional steps that need to be performed in order for my app to work properly on newer machines?
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Feb ’25
any pyqt user here? can you tech me how to make a perfect app
i was complete my program, and export a mac app already it work ok in my macmini, but if i want send it to app store, that i have no way now i still do not know how to make this app perfect like, when i use pyinstaller to build this app, is there any info or elements need make with? i can sign my app now, even i use codesign -dvvv my.app to check the sign, it is also ok, there no any feedback said it anything wrong. so, any master know fix app sign or any infoplist please tech me... help
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258
Feb ’25
Launching an app from Finder
Hi everyone. Sorry if this is not an appropriate forum section for this question. I'm making a game engine and it doesn't launch on my colleague's MacBook, although it does launch on mine. There's an application file, let's say, Sample.app. And along with it in the same folder there's Engine.dylib. If we look at the app-file structure, the executable file's path is Contents/MacOS/Sample. So for the executable file the library is located at the path ../../../Engine.dylib. But when my colleague runs the Sample.app file, he gets an error "Library not loaded: @executable_path/../../../Engine.dylib". Although the path is correct and on my MacBook it works. Are there any ideas how to fix it?
Topic: Code Signing SubTopic: General
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349
Feb ’25
Mismatch of teamID while creating development certificate
Hi Team, I have created multiple certificates for macOS application. Below are the certificates created- Apple Development Certificate DeveloperID Installer Certificate Apple Distribution Certificate others certificates Later, I have imported the all these above certificates in keychain-access. Now, I tried to compile the code through Xcode. I am getting error for code signing certificate. Warning: unable to build chain to self-signed root for signer "Apple Development: Amit (M2WMF2YERI)” .... Command CodeSign failed with a nonzero exit code When I checked the TeamID of User(Amit) I can see that his current TeamID is [P8ZW3W9R2Q]. There is mismatch of teamID in apple development certificate generation. Note- All certificates are generated with current TeamID[P8ZW3W9R2Q] of user (Amit) except Apple Development certificate which has been generated with TeamID [M2WMF2YERI] which is generated with old TeamID of user (Amit). I attempted to generate the apple development certificate multiple times but it is getting generated with old TeamID TeamID[M2WMF2YERI] of user(Amit)
 Summary- While creating a developer certificate using apple developer account and mapping it in keychain, the certificate is being generated with old apple account details (Inactive) instead of the current one. This is causing issues when using the certificate in keychain. If anyone has encountered this issue, how it was resolved?
 Thanks
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403
Feb ’25
Mismatch of TeamID while creating development certificate
Hi Team, I have created multiple certificates for macOS application. Below are the certificates created- Apple Development Certificate DeveloperID Installer Certificate Apple Distribution Certificate others certificates Later, I have imported the all these above certificates in keychain-access. Now, I tried to compile the code through Xcode. I am getting error for code signing certificate. Warning: unable to build chain to self-signed root for signer "Apple Development: Amit (M2WMF2YERI)” .... Command CodeSign failed with a nonzero exit code When I checked the TeamID of User(Amit) I can see that his current TeamID is [P8ZW3W9R2Q]. There is mismatch of teamID in apple development certificate generation. Note- All certificates are generated with current TeamID[P8ZW3W9R2Q] of user (Amit) except Apple Development certificate which has been generated with TeamID [M2WMF2YERI] which is generated with old TeamID of user (Amit). I attempted to generate the apple development certificate multiple times but it is getting generated with old TeamID TeamID[M2WMF2YERI] of user(Amit)
 Summary- While creating a developer certificate using apple developer account and mapping it in keychain, the certificate is being generated with old apple account details (Inactive) instead of the current one. This is causing issues when using the certificate in keychain. If anyone has encountered this issue, how it was resolved?
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439
Feb ’25
After deploying our app, we encountered an issue where the app fails to launch properly on certain devices.
Hello, After deploying our app, we encountered an issue where the app fails to launch properly on certain devices. To rule out potential code issues, we created a new clean project and tested it with the basic setup (certificate, bundle ID, and team). The app installs and runs fine on most devices, but it fails to open immediately on specific models. (The affected model is listed below.) Version: iOS 18.3.1 Model: iPhone 14 Pro After reviewing the console logs, we found an issue related to the app launching process. Could this issue be related to the app's configuration or the provisioning profile? We would appreciate any insight into why this issue occurs only on certain devices. Thank you for your help!
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421
Feb ’25
Unable to Code Sign: errSecInternalComponent on macOS Sonoma 15.3
Hi Developer Community, I'm encountering persistent code signing failures on macOS Sonoma 15.3 with a valid Developer ID Application certificate. The error occurs consistently across multiple certificate regenerations and various troubleshooting approaches. Environment macOS Version: Sonoma 15.3 Developer Account Type: Developer ID Certificate Type: Developer ID Application Certificate Details: Developer ID Application certificate valid until 2027 Using SHA-256 with RSA Encryption Certificate shows as valid in Keychain Access with associated private key Error Message Warning: unable to build chain to self-signed root for signer "Developer ID Application: [my certificate]" [filename]: errSecInternalComponent Steps to Reproduce Install certificate chain in order: Apple Root CA (System keychain) Apple WWDR CA (System keychain) Developer ID CA (System keychain) Developer ID Application certificate (Login keychain) Verify certificate installation: security find-identity -v -p codesigning Result shows valid identity. Attempt code signing with any binary: codesign -s "Developer ID Application: [my certificate]" -f --timestamp --options runtime [filename] Results in errSecInternalComponent error Troubleshooting Already Attempted Regenerated Developer ID Application certificate multiple times from Developer Portal Completely removed and reinstalled entire certificate chain Verified trust settings on all certificates (set to "Always Trust" for code signing) Tried multiple codesign command variations including --no-strict flag Verified keychain integrity Installed latest Apple CA certificates from apple.com/certificateauthority Verified certificate chain is properly recognized by security verify-cert Additional Information All certificates show as valid in Keychain Access Private key is properly associated with Developer ID Application certificate Trust settings are correctly configured for all certificates in the chain Problem persists after clean certificate installations Error occurs with any binary I try to sign Has anyone else encountered this issue on Sonoma 15.3? Any suggestions for resolving this system-level certificate trust chain issue would be greatly appreciated. Thanks in advance!
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482
Feb ’25
Bundle Identifier and development team when running playground on xcode
Hi everyone, I am doing my app playground, when I change the development team or try to clear it, this bug happend? So I wonder do I have to remove it when I submit my work or just leave it there. Signing for "myapp" requires a development team. Select a development team in the Signing & Capabilities editor.
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383
Feb ’25
Unable to edit problematic keychain-access-groups setting of downloaded provisioningprofile for signing
In an expo managed project which utilizes custom expo plugins, we're having trouble getting the keychain-access-groups entitlement inserted to our provisioningprofile for signing. The provisioning profile we download from apple dev portal contains: <key>keychain-access-groups</key> <array> <string>56APMZ7FZY.*</string> <string>com.apple.token</string> </array> and this is not recognized by xcode for signing; an error is thrown: Provisioning profile "ccpp" doesn't include the com.apple.developer.keychain-access-groups entitlement. A matching error is thrown during EAS build. So we need to find a way to modify the ccpp.mobileprovision locally and then sign the build using the modified ccpp.mobileprovision. Or, we need guidance on the proper way to resolve this situation. Questions: why does the downloaded mobileprovision file have the keychain-access-groups key, and not com.apple.developer.keychain-access-groups? Both Xcode and EAS appear to demand the latter keyname. when I use expo prebuild, I am able to see the following in the .entitlements file: <key>com.apple.developer.keychain-access-groups</key> <array> <string>$(AppIdentifierPrefix)com.myapp</string> </array> I am adding this entitlement using a custom expo plugin. However, the mobileprovision file downloaded from apple developer portal has no knowledge of this setting which is only applied through expo prebuild. So what I am left with at the end is an entitlements file generated by my expo prebuild which has the correct setting, and a provisioningprofile downloaded from dev portal with an incorrect setting, and I don't know how to mend the downloaded provisioningprofile (incorrect setting) with my local entitlements file (correct setting).
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710
Feb ’25