After fresh install ALL Apps from AppStore crash with Namespace CODESIGNING, Code 0x1

I am having the exact same issue. I am not an advanced user, and can see responses about partitioning hard drives ect which i am not prepared to do.

Today, I just had my iMac 27" (late 2009) repaired after the hard drive crashed, so pretty much a brand new machine, working great, but now i can use it for anything i was hoping for! so frustrating.

stephán193

Nov 18, 2020 10:31 AM in response to GrenadeBait

I was introduced a solution that works with some apps. 

Open terminal and type:

sudo codesign —deep -fs - /Applications/Pages.app

After typing -fs - you can drag your desired application. I tried it with pages. While it now opens and gives me the option to either create a new document or open an existing one, it closes again after I chose one of said options. But with some other apps it actually worked.  

https://discussions.apple.com/thread/252030900?answerId=253912973022#253912973022

Hi mate, I have the exact same issue on a fresh install of High Sierra. Every App Store app crashes on launch. Will Apple still fix this since High Sierra is end of life? It almost seems to be something that's happened after this latest update.

Using MacBook Pro 15" mid-2010 Intel i5. Any advice on if it's something on my end or Apple's would be much appreciated. Thanks.

Same issue for me. iMac 27, late 2009. Fresh re-install in the last 2 weeks, not sure when. HDD erased prior to reinstall. I had been struggling with the reinstall-from-USB as the first reboot after reinstall kept getting me the grey-progress-bar that never gets to the login screen, which is the reason why I attempted a clean reinstall. I once had issues with the GPU, which I resurrected few years ago by baking it (yes, it worked!!), and booting in safe mode after that clean reinstall allowed me to move forward and kept applying all High Sierra security patches up to 2020-006. Since I could only boot in safe mode and had GPU issues in the past, I tried the trick to move the .kext out so they won't get loaded. Bingo! I could now boot in normal mode (with slow graphics, but that is a start).

Then I ran into the issue discussed here. Only one app downloaded from the App Store: MS Remote Desktop. Same error, because of EXC_CRASH (Code Signature Invalid). ok.

Looking at a MBP running Mohave, 2020-005 not yet installed, I ran into something interesting.

On the MBP, running "codesign -d -vvv /Application/Microsoft\ Remote\ Desktop.app" will show

Authority=Apple Mac OS Application Signing

Authority=Apple Worldwide Developer Relations Certification Authority

Authority=Apple Root CA

But running the same on the faulty High Sierra will show this:

Authority=(unavailable)

If the app can't validate to a trusted CA, that is one possible cause of the code signing error. Moving on, looking at KeyChain on High Sierra, "Apple Root CA" is present. However "Apple Worldwide Developer Relations Certification Authority" is missing, while it is present on Mohave. I was hoping that downloading and installing the missing CA from https://www.apple.com/certificateauthority/ on High Sierra would get things to work again. It didn't. codesign still shows unavailable.

Another odd thing. "Apple Mac OS Application Signing" is not found in KeyChain on Mohave. So how does codesign builds the CA trust chain? Does a .app include signer / CA certificates?

If someone has a working High Sierra setup, I would be curious to look at the codesign output of any app installed from the AppStore, so I can see the Authority being listed.

Whew, tough for me to find anything from the App Store, always pictured something like this problem... just wait until your Heart Monitor has to check in to keep functioning!

bd1$ codesign -d -vvv /Applications/Folder\ Sync\ 2.app 

Executable=/Applications/Folder Sync 2.app/Contents/MacOS/Folder Sync 2

Identifier=com.destek.foldersync2

Format=app bundle with Mach-O thin (x86_64)

CodeDirectory v=20500 size=19074 flags=0x10200(kill,runtime) hashes=587+5 location=embedded

Hash type=sha256 size=32

CandidateCDHash sha256=2740f921100e5268a4437b8af54e66bd17cbcdad

Hash choices=sha256

CDHash=2740f921100e5268a4437b8af54e66bd17cbcdad

Signature size=4617

Authority=Apple Mac OS Application Signing

Authority=Apple Worldwide Developer Relations Certification Authority

Authority=Apple Root CA

Info.plist entries=30

TeamIdentifier=TL9AGPNBH9

Runtime Version=10.15.6

Sealed Resources version=2 rules=13 files=26

Internal requirements count=1 size=224

im21:bd1$ 

I just easily downloaded OS Sierra from here: https://support.apple.com/en-us/HT211683

Then unpacked to get Install app.

On the last step I used dosdude1 Sierra patcher software to make bootable usb - only for this case, my MBP 8.1 is natively supported by Sierra OS.

All apps works correctly...

I also reverted to Sierra. Took a little longer but I will use it until a fix comes from Apple for High Sierra, or I get a newer computer.

I didn't bother with making a bootable install though. I just installed the factory OS over the internet that came with the Mac (Shift-Option-Command-R) then downloaded the Sierra disk image and ran the package; it's all automatic from there. This might be easier for some people, but I do recommend making a bootable usb installer in case any more negative changes from Apple are on the way.

BTW gang... I have been working on this issue since November 11 last week, and I noticed that a few days ago the Apple support pages I was using for instructions and installers have changed to these...

https://support.apple.com/en-ca/HT204904

https://support.apple.com/en-us/HT211683

They are still good pages but it's interesting that they changed after the issue started.

I'm posting a request from PeterPeterPeterPeter (https://discussions.apple.com/thread/252030900?answerId=253955318022&page=2) for us to report this issue on the two Apple Feedback resources below...

Please help by reporting to Apple here https://apple.com/feedback

and here https://feedbackassistant.apple.com !

Has the Security Update 2020-05 been applied? Following that update, watch for another Security Update 2020-06 which @ this time is NOT listed on Apple Downloads Page

Thanks for the feedback! Hope you are successful. We anxiously await your update.

Great post 👌

Wiped my hard drive.

Reformatted to Mac Journaled.

Booted using a Sierra installer via a DVD.

Slow process but worked.