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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App Signing and Uploading Intel/Apple
Hello, I am normally a windows programmer, but I am trying to get my PySide/Qt app into the app store. I'm almost there, I just have a couple of questions about the signing process. I have two laptops, one intel silicon, one mac silicon. I created 2 CSR's, one on each laptop and used them to generate 2 Mac Installer Distribution certificates and 2 Mac App Distribution certificates. When it came to downloading the provisioning profile, I selected one Mac App Distrbution Certificate on the interface at developer.apple.com, saved it and then downloaded to the appropriate laptop. I then switched the provisioning profile to the other Mac App Distribution Certificate and downloaded it to the other laptop. I then built the app and uploaded everything using xcrun altool. On the intel machine only(which has the first provisioning profile) I successfully uploaded the package but I get an email identifying lots of similar errors of the type (Lets call it error1): ITMS-90284: Invalid Code Signing - The executable XXXXX must be signed with the certificate that is contained in the provisioning profile. On the ARM machine only i get the following error (Lets call it error2): ITMS-91109: Invalid package contents - The package contains one or more files with the com.apple.quarantine extended file attribute, such as XXXXXXXX embedded.provisionprofile”. This attribute isn’t permitted in macOS apps distributed on TestFlight or the App Store. Please remove the attribute from all files within your app and upload again. On both I get the following error lets call it error3: ITMS-90886: 'Cannot be used with TestFlight because the signature for the bundle at XXXXX is missing an application identifier but has an application identifier in the provisioning profile for the bundle. Bundles with application identifiers in the provisioning profile are expected to have the same identifier signed into the bundle in order to be eligible for TestFlight.' My first inclination is that all the error1's are coming from having two sets of CSRs, Mac Distribution certificates, provisioning profiles etc. Should I have only used one CSR and made one each of the Certificates? I don't know why I have error2. I don't know where the quarantine attribute is coming from and why it would affect the mac silicon and not the intel. Any ideas? my entitlements file has the following: <key>com.apple.security.cs.allow-jit</key> <true/> <key>com.apple.security.cs.allow-unsigned-executable-memory</key> <true/> <key>com.apple.security.cs.disable-library-validation</key> <true/> <key>com.apple.security.app-sandbox</key> <true/> <key>com.apple.security.device.bluetooth</key> Error3 is the one where I need to try a few things but knowing what is expected will help. In the provisioning profile when viewed at developer.apple.com it has the APP ID listed as the 10 digit id followed by the bundle ID but I sometimes see just the 10 digit app ID being used and sometimes the bundle ID. I know that it's up to me to figure out how to get it into the build, but knowing what it should be would be helpful. On the other hand the text "Bundles with application identifiers in the provisioning profile ..." indicates that if the application identifier was not in the provisioning profile i might get away with it, but this might be grasping at straws. If you have made it this far, thank you for reading.
Topic: Code Signing SubTopic: General
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May ’25
Disappearing External link account entitlement
I've got a Flutter app that is a “reader” app. The External Link Account Entitlement has already been requested and granted. It is already added as an Additional Capability to the App ID. The com.apple.developer.storekit.external-link.account entitlement is already present in the .entitlements file. Also SKExternalLinkAccount key is added to the Info.plist file with the correct URL. ExternalLinkAccount.open() is invoked via a MethodChannel call handler and things work perfectly in debug mode. The modal appears as expected and opens the link in the external browser. Xcode archive is also sucessful and the entitlement seems to be in place when inspecting the app with: codesign -d --entitlements :- ./path/to/app But when trying to distribute the app via Xcode the entitlement disappears. Other entitlements are not affected by this issue, eg.: com.apple.developer.associated-domains for universal links. This happens with automatically managed singing and a manually selected provisioning profile as well. When inspecting the latter in Xcode the necessary capability and entitlement is included. But when distributing to App Store Connect the entitlement disappears with both recommended and custom settings. I ran flutter clean mulitple times. What am I missing here?
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808
Jan ’25
Code Signing - Invalid Signature - Special Characters in Name, Team Name and Address
I was trying to put my game to test flight. I would test features like ads and in-app-purchases, then put on the Appstore(release). The game already works on Ipad. For test flight, the "automatically manage signing" option was enabled. Then I pressed the "archive" button. Built succeeded. Then I clicked the distribute button. That time, I had an error. "Upload failed, Invalid signature, App is not properly signed". I researched, and found special characters in name, team name and address can make errors. My name, address and team name have special characters(turkish). If it will be resolved, I want to re-write(fix) my name, team name and address. I already tried to change my name, team name and address from apple developer website but failed. They are asking a document of my identity of my new name but I didn't changed my name and address. Overall, there aren't any other facts that cause this issue as I know. If I send my current, unchanged identity and home address, could they allow to change(fix) them? On Console Log: DangerNo.app/DangerNo: ID : 6cfa13a9-685c-4df9-86dd-7506d67be8c5 DangerNo.app/Frameworks/UnityFramework.framework/UnityFramework: ID : 2b63aacc-9caf-453c-913f-bae0db14d363 My App ID : 6744022885 Error : Invalid Binary rejection email indicating a corrupted code signature was detected. Explanation : Invalid Signature - Make sure you have signed your application with a distribution certificate, not an ad hoc certificate or a development certificate. Verify that the code signing settings in Xcode are correct at the target level (which override any values at the project level). Additionally, make sure the bundle you are uploading was built using a Release target in Xcode, not a Simulator target. If you are certain your code signing settings are correct, choose "Clean All" in Xcode, delete the "build" directory in the Finder, and rebuild your release target.
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159
Apr ’25
Notarising two builds of the same app
I have built my application for arm and x64 so I have two files called DeepSkyStacker.app in different directories. I have followed the instructions to notarise the arm version of the app, but an concerned about what I should do to notarise the other one - do I just zip that up and then run: xcrun notarytool submit "DeepSkyStacker.zip" --keychain-profile "Notary Profile for DeepSkyStacker" --wait xcrun stapler staple DeepSkyStacker.app again or will that mess everything up? Related to that can I use the Notary Profile I created for DeepSkyStacker to notarise other apps that are part of the same product (DeepSkyStackerLive and DeepSkyStackerCL)?? Thanks David
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108
Apr ’25
macOS 11.x system reported an error when using endpoint security
This is .entitlements file: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>com.apple.developer.endpoint-security.client</key> <true/> </dict> </plist> Code signing: codesign --sign -vvv --timestamp --options=runtime --force --entitlements ./UES.entitlements -s "Developer ID Application: XXXX Ltd. (XXXXXX)" ./UES.app When I run it on macOS 13.x, it works fine. If I run the system on macOS 11.x, it reports a "killed" error (if codesign remove --entitlements ./UES.entitlements, Then the startup will not report an error, but the endpoint security rights cannot be used) System log: 2025-04-21 13:58:27.039638+0800 0xd5941 Default 0x0 149 0 amfid: /Applications/UES.app/Contents/MacOS/UES signature not valid: -67050 2025-04-21 13:58:27.039762+0800 0xd5bbf Default 0x0 0 0 kernel: mac_vnode_check_signature: /Applications/UES.app/Contents/MacOS/UES: code signature validation failed fatally: When validating /Applications/UES.app/Contents/MacOS/UES: 2025-04-21 13:58:27.039815+0800 0xd5bbf Default 0x0 0 0 kernel: proc 29354: load code signature error 4 for file "UES" 2025-04-21 13:58:27.040720+0800 0xd5bc0 Default 0x0 0 0 kernel: (AppleSystemPolicy) ASP: Security policy would not allow process: 29354, /Applications/UES.app/Contents/MacOS/UES 2025-04-21 13:58:27.045974+0800 0xd58be Error 0x0 66405 0 CoreServicesUIAgent: [com.apple.launchservices:uiagent] handle LS launch error: {\n Action = oapp;\n AppMimimumSystemVersion = "10.13";\n AppPath = "/Applications/UES.app";\n ErrorCode = "-10826";\n} 2025-04-21 13:58:39.121619+0800 0xd5941 Default 0x0 149 0 amfid: /Applications/UES.app/Contents/MacOS/UES signature not valid: -67050 2025-04-21 13:58:39.121832+0800 0xd5e0f Default 0x0 0 0 kernel: mac_vnode_check_signature: /Applications/UES.app/Contents/MacOS/UES: code signature validation failed fatally: When validating /Applications/UES.app/Contents/MacOS/UES: 2025-04-21 13:58:39.121861+0800 0xd5e0f Default 0x0 0 0 kernel: proc 29415: load code signature error 4 for file "UES" 2025-04-21 13:58:39.122571+0800 0xd5e10 Default 0x0 0 0 kernel: (AppleSystemPolicy) ASP: Security policy would not allow process: 29415, /Applications/UES.app/Contents/MacOS/UES 2025-04-21 13:58:46.297915+0800 0xd5941 Default 0x0 149 0 amfid: /Applications/UES.app/Contents/MacOS/UES signature not valid: -67050 2025-04-21 13:58:46.298031+0800 0xd5f85 Default 0x0 0 0 kernel: mac_vnode_check_signature: /Applications/UES.app/Contents/MacOS/UES: code signature validation failed fatally: When validating /Applications/UES.app/Contents/MacOS/UES: 2025-04-21 13:58:46.298072+0800 0xd5f85 Default 0x0 0 0 kernel: proc 29485: load code signature error 4 for file "UES" 2025-04-21 13:58:46.300248+0800 0xd5f86 Default 0x0 0 0 kernel: (AppleSystemPolicy) ASP: Security policy would not allow process: 29485, /Applications/UES.app/Contents/MacOS/UES May I ask what the reason is?
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159
Apr ’25
How can I export the "Notary Profile" used by notarytool for CI/CD
Once I have built my macOS .app and signed it I run notarytool using this simple shell script: #!/bin/sh ditto -c -k --keepParent "$1.app" "$1.zip" xcrun notarytool submit "$1.zip" --keychain-profile "Notary Profile for DeepSkyStacker" --wait xcrun stapler staple $1.app rm -f $1.zip How can I export that "keychain-profile" (notary profile) so I can use it in CI/CD actions? Clearly I don't wish to expose the full invocation of xcrun notarytool store-credentials.
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156
Jun ’25
Gatekeeper "bundle_id: NOT_A_BUNDLE" rejection
Context: large platform-agnostic CLI tool built as a handcrafted bundle (not via an Xcode project) that has been successfully codesigned, stapled, and zipped; macOS 14.7.5 syspolicy_check reports App passed all pre-distribution checks and is ready for distribution. However, running the executable in the Terminal produces a "cannot be opened because the developer cannot be verified" popup. The executable does succeed after manually clearing its quarantine attribute. Having worked through Resolving Gatekeeper Problems, the only detail logged in the Console is Adding Gatekeeper denial breadcrumb (direct): ... bundle_id: NOT_A_BUNDLE. Experimental observations: a minimized trivial CLI executable with a similar bundle layout and name successfully executes without being rejected, and oddly, renaming the original bundle from "name" to "name.suffix" allows it to be successfully executed. It's unclear why the bundle name would affect Gatekeeper only in some circumstances, and we'd greatly prefer not to rename the bundle for compatibility reasons, so it would be good if there were some way to get further diagnostic detail leading to a workaround - thank you.
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176
Apr ’25
Unable to remove certificate from xcode
I have two certificates in my Accounts>Manage Certificates section. One is active, the other is greyed out with a status of "Not in Keychain". I only have ONE certificate in the developer account online. Timeline: Had an issue with fastlane codesigning and was trying to resolve that. In that attempt I deleted my related Certificates from my keychain Xcode showed them as disabled (greyed out) and not in Keychain. Look up how to resolve, need to revoke certificates in Developer account online. I go and revoke those certificates. Nothing changes I create new certificate and try to add it to xcode>account>certificate managment>"Apple Development". Get an error saying I can't add a new can't do that because a certificate is already pending. I waited a day because I assumed like somethings with apple, updates are not immediate. I come back the next day and am able to add a new certificate. However, the previous one that is greyed out and reads "Not in Keychain" under Status, is still there. How do I remove that "Not in Keychain" certificate? I emailed developer support and they directed me here.
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340
Sep ’25
Clarification and help with the certificate.
I am a complete novice and I find that I cannot restore or delete the “Apple Development” certificate (I only use it for signing). From what I understand, you need to be in a program to manage certificates, but I have no intention of distributing any applications and, from my point of view, it makes no sense to pay. Am I wrong or am I doing something wrong? Notes: This happened after I installed Tahoe on a new installation. I was able to restore it using a copy of the keychains folder I had from Sequoia. Xcode (Apple Accounts - Manage Certificates) now shows me two certificates, indicating that one is not in the keychain and cannot be deleted.
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385
Sep ’25
CI - Warning: unable to build chain to self-signed root for signer
I am able to sign my application when logged in to the machine, however when build is running in CI (Jenkins), I get this: "Warning: unable to build chain to self-signed root for signer.." We just renewed or certificates, so I am not sure about previous procedure, but it used to work without temporary keychain and stuff, I believe. What should be the recommended way to sign an application on CI? What keychain should we use? system? temporary? other method? Thanks, Itay
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314
Sep ’25
Problem adding Call Directory capability
I added a extension called Call Directory to an IOS app as we want to call blocking and caller id. I was able to add App Groups to both runner and CallDirectory. I cannot see of add Call Directory capability. Am I missing something. I added the extension through the Call Directory Target template. If I try to add this to CallDirectory.enitlements manually com.apple.developer.callkit.call-directory call-blocking caller-identification i recieve this signing error. Provisioning profile "iOS Team Provisioning Profile: "" doesn't include the com.apple.developer.callkit.call-directory entitlement. I cannot add Call Directory to an identifier in Apple Developer either.
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532
Aug ’25
Unable to install profiles on device and sign apps
I have tried again and again to generate and install the .mobileprovision on my device for testing apps following the exact instructions. I cannot get this to work. When I tap the .mobileprovision on the device I get the error "Profile Error - This profile cannot be installed." In Xcode in the console as I try to install the profile, this is what it shows: `profiled (ManagedConfiguration) Desc : Invalid Profile US Desc: Invalid Profile Domain : MCProfileErrorDomain Code : 1000 Type : MCFatalError and then profiled Desc : Invalid Profile Sugg : Invalid Profile US Desc: Invalid Profile US Sugg: Invalid Profile Domain : MCInstallationErrorDomain Code : 4000 Type : MCFatalError ...Underlying error: NSError: Desc : Invalid Profile US Desc: Invalid Profile Domain : MCProfileErrorDomain Code : 1000 Type : MCFatalError I have been at this for days and cannot get it to work. Any help would be appreciated
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153
Jun ’25
Migrating Identifier from non-team prefix within single account
Hello, In our Account we have an iOS app with an explicit identifier "ABC123.com.some.app" that is using non-team prefix which is DEF456. It has also explicit identifiers for Widgets bundle and Notification Service. Due to non-team prefix, it can't access e.g. shared keychain and data put there by our other apps. Since we are working on features that require these capabilities, we would like to update the app identifier, so it is prefixed with our team id DEF456. Initially, we thought that the process would require steps like: Create new app, team-prefixed identifier(s) for app and all things that need them Recreate the provisioning profiles with new App Identifier Roll out the app using with new profiles via App Store but when trying to create the new identifier with com.some.app and team id prefix DEF456 we are getting following error: An App ID with Identifier com.some.app is not available. Please enter a different string. Can anybody advise us how to correctly perform such change and what steps are required from our end? We would like to keep our existing App Store entry, ratings and smoothly switch users. We are aware that this kind of migration results in loss of Keychain access. Thanks for any advice on that!
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144
May ’25
What is the right procedure for asking for entitlements ?
I want to use the com.apple.vm.networking entitlement which has a note: This entitlement is restricted to developers of virtualization software. To request this entitlement, contact your Apple representative. https://developer.apple.com/support/technical/ says: « Request entitlements using entitlement forms and ask for status updates in the resulting email thread. » but I haven't been able to find these "entitlement forms". Does anyone know what the right process is to request an entitlement?
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879
Feb ’25
Notarization Taking 20 Hours (and still counting)
I'm developing an app using Electron Builder for a potential port to Windows in the future. I've had a heck of a time getting credentials to work and felt like I was in some sort of time loop doing the same things over and over again to no avail. I finally was able to sign my app, sign the .dmg and start the notarization process. That was last night and it still says "In Progress". If anyone is able to push it through, that would be awesome! (id: 2520e724-7069-408a-9ea4-60b23e8435a7) I saw another thread on here where people stated it was taking forever, I'm not sure if this is just because its my first time, but I was hoping to get a beta out to testers this weekend. I just need a version that doesn't get flagged as "Malware" by Gatekeeper. This is just for a standalone macOS application, not the App Store. Is there a reason that this process takes an absurd amount of time? Will it always be like this or is this just a fluke and it was a bad time to try?
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443
Mar ’25
Local DriverKit development blocked by provisioning profile requirement
Hi, I am working on a personal HIDDriverKit project. The documentation suggests that you do not need the entitlements from Apple to do local development - that all you need to do is turn of SIP, enable developer mode, and turn signing to "Sign to Run Locally". However, I have followed all of these steps, and am still running into the error that to build, I need to have a provisioning profile with the DriverKit (development) feature (MacOS 15.2 Xcode 16.2). Am I missing something here regarding the steps for local development? Does one need to request a development version of the entitlements even for local development? Do I need a paid developer account to do this? Thank-you in advance.
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491
Mar ’25
Notarytool in progress for over 2 days
Whilst waiting for the company developer account I successfully notarised an app/pkg On switching to the company account the app/pkg has been stuck in progress for over 2 days (see below) The initial submission was via Xcode and later via command line. The last one was when I updated bundle ids etc and built with Github Actions. The initial submission did coincide with a service outage, however that is marked as resolved. I would like to cancel all of them now that I have switched the signing account and the bundle ID but there seems no way to do this? Thoughts and comments welcome. Thanks Paul -------------------------------------------------- createdDate: 2025-08-14T11:03:24.837Z id: edf215d0-4d15-4075-aa6f-4755a35b3d45 name: ZenityEndpointAgent.pkg status: In Progress -------------------------------------------------- createdDate: 2025-08-12T21:36:36.345Z id: 9c98de09-d3aa-449b-ad47-7e721b0342c5 name: AIEdgeDeviceAgent.pkg status: In Progress -------------------------------------------------- createdDate: 2025-08-12T16:58:50.891Z id: 9206f9be-0fc4-4c6c-aa66-8fcbe3332155 name: AIEdgeDeviceAgent.pkg status: In Progress -------------------------------------------------- createdDate: 2025-08-12T10:37:35.624Z id: b20d1dd0-084e-441c-87a6-641fb088819e name: AIEdge Device Agent.zip status: In Progress
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288
Aug ’25
FamilyControls App Blocking Not Working for External TestFlight Testers
Hi everyone, I'm following up on this post I made earlier about an issue I'm having with FamilyControls and the DeviceActivityMonitor extension not working for external TestFlight testers. To briefly recap: I have official Apple approval for the com.apple.developer.family-controls entitlement (distribution) The entitlement is added to both my main app and the DeviceActivityMonitor extension The App Group is correctly configured for both targets On internal TestFlight builds, everything works as expected: app blocking works, the extension runs, and selected apps are shielded. On external TestFlight builds, users get the Screen Time permission prompt, can select apps to block, but nothing is blocked. Since that post, I submitted a Code Level Support request, and Apple asked me to file a bug report via Feedback Assistant. I did that almost a month ago. The only reply I’ve received since is that they can’t give a timeframe or guarantee it will be resolved. I'm stuck in limbo with no updates and no fix. This feature is critical to my app and I cannot launch without it. I’ve reached out to other developers who use app blocking, and none of them have run into this issue. My setup seems correct, and Apple has not said otherwise. If anyone has experienced something similar, found a workaround, or knows how to get real movement on a bug report like this, I would really appreciate any help. It’s been weeks, and I just want to launch my app. Thanks so much.
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212
May ’25