All iOS Apps suddenly no longer open on macOS Big Sur (M1), /var/log/system.log reports FairPlay decryption failed on binary?

Question

And I have exactly zero idea where to start finding a solution. It doesn't bounce on the dock like loading, nothing at all.

Everything is updated from system updates and app store, I didn't upgrade to Monterey yet, but if nothing works that would be my next plan.

You did reboot, I assume? Is there anything relevant in /var/log/system.log? — nohillside, Commented Mar 10, 2022 at 10:19
tried to tail -f /var/log/system.log, got this after executing an app. pastebin.com/wJh8d5bh also a video me executing and stuff : youtu.be/AQyS8oxkj_w — Rinaldo Jonathan, Commented Mar 10, 2022 at 15:26
tried some googling, found this. forums.macrumors.com/threads/… but it does mention SIP. my SIP is enabled and untouched. — Rinaldo Jonathan, Commented Mar 10, 2022 at 15:29

Wowfunhappy · Accepted Answer · 2022-03-17 00:47:28Z

1

Did you turn off System Integrity Protection?

Unfortunately (and to my great disappointment), disabling System Integrity Protection on Apple Silicon Macs also prevents iOS apps from launching, with the exact behavior you describe. If SIP is off, try turning it on. If you need SIP to be off, you unfortunately will not be able to run iOS apps on your Mac at this time.

edited Mar 17, 2022 at 0:47

answered Mar 16, 2022 at 20:49

Wowfunhappy

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no I didn't. SIP is not turned off, and never turned off.
– Rinaldo Jonathan
Commented Mar 16, 2022 at 22:21
It's probably pointless, but maybe try toggling it on or off? It's super strange, that log message you shared is exactly what happens when you try to launch iOS apps on Macs without SIP. I feel like there's a connection there, even though I have no idea what it is.
– Wowfunhappy
Commented Mar 17, 2022 at 0:50
...frankly, you might want to just phone Apple support or go to a genius bar. Fairplay and iOS app support are opaque and really hard to debug from the outside.
– Wowfunhappy
Commented Mar 17, 2022 at 0:51
disabling and enabling sip back didn't help.
– Rinaldo Jonathan
Commented Mar 22, 2022 at 5:35

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eleczo · Accepted Answer · 2022-03-10 10:10:28Z

0

I also not an expert, but rebooting and logging out and log in again in apple cloud, i to faced that issue, i done this and the app worked very well

answered Mar 10, 2022 at 10:10

eleczo

12 bronze badges

didn't work in my case.
– Rinaldo Jonathan
Commented Mar 10, 2022 at 17:06

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Rinaldo Jonathan · Accepted Answer · 2022-03-22 15:29:49Z

0

What I finally did : Reinstall my second mac mini to Monterey, then use Migration Asistant to move everything from the problematic mac mini.

I'm really stuck and don't know what else to do, and I know this might be not the solution for everyone, but maybe Time Machine would help if you really stuck with this problem too and don't have second macs around to migrate stuff.

answered Mar 22, 2022 at 15:29

Rinaldo Jonathan

516 bronze badges

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