aguilard107 Nov 20, 2021 @ 10:48am
After update to MacOS Monterey 12.0.1 Steam is unable to open--Steam crashes immediately
I recently updated my macOS to Monterey 12.0.1. Whenever I try to open Steam, whether directly or by clicking on a Steam game shortcut, it immediately crashes. It does not open at all whatsoever.

Please help!

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Translated Report (Full Report Below)
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Incident Identifier: 6F2D158F-FA42-4999-B399-DE5B72D1571C
CrashReporter Key: 872AD8BE-3C7A-2052-E08F-801739BB5E1D
Hardware Model: MacBookPro16,2
Process: steam_osx [1095]
Path: /Applications/Steam.app/Contents/MacOS/steam_osx
Identifier: com.valvesoftware.steam
Version: 3.0
Code Type: X86-64 (Native)
Role: Unspecified
Parent Process: launchd [1]
Coalition: com.valvesoftware.steam [1167]

Date/Time: 2021-11-20 13:44:10.2617 -0500
Launch Time: 2021-11-20 13:44:09.9267 -0500
OS Version: macOS 12.0.1 (21A559)
Release Type: User
Report Version: 104

Exception Type: EXC_CRASH (SIGKILL (Code Signature Invalid))
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Reason: CODESIGNING 1
Last edited by aguilard107; Nov 20, 2021 @ 10:49am

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Showing 1-15 of 19 comments
mattmasterv Nov 20, 2021 @ 11:44am 
same thing but I'm 30 osts out of date
lowe cense Nov 20, 2021 @ 1:50pm 
I have not updated yet but I have the installer ready, im currently using big sur but my Mac will just bounce on the dock and not open idk how to fix it?
XenoChef Nov 20, 2021 @ 8:28pm 
same issue . ive logged in on my phone to see if anyone else has the problem. how do i fix this??
lowe cense Nov 21, 2021 @ 2:30am 
mine is fixed i deleted steam and reinstalled it
oxygennnnnn Nov 21, 2021 @ 7:35am 
Ok🙂
unclebuster Nov 23, 2021 @ 9:04am 
same issue here, but still on Big Sur 11.6.1 - crashes started after downloading the latest steam update
joseba_FPV Nov 23, 2021 @ 10:07am 
steam works but liftoff game bricks my mac OS. I deleted the game and reinstall but still issue.... any thing?
DysprosiumHolmium Nov 23, 2021 @ 8:36pm 
Still on Big Sur, it started crashing after updating steam. I rebooted, nothing. Deleted and reinstalled the app, seems to have fixed the issue. Not sure but maybe the update didn't apply correctly.
trailingZero Nov 27, 2021 @ 12:47am 
Same problem. On Monterey 12.0.1.
Alz2332 Nov 27, 2021 @ 9:42am 
Same here !
NICE
trash pigeon Nov 28, 2021 @ 7:58am 
I had the same issue (Monterey 12.0.1, same error report). I deleted and reinstalled Steam, and that fixed it.
cam.orourke Nov 28, 2021 @ 8:47am 
have deleted and reinstalled– still having this issue
Egoist Dec 10, 2021 @ 3:56am 
I had the same symptoms after updating to Monterey.

After searching here in the forum I tried the following tip:
entered the following two lines in the terminal:
-------
cd /Applications/Steam.app/Contents/MacOS
./steam.sh
-------

after that Steam worked again

Ego
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de_DE:
Ich hatte die gleich Symptome nach dem Update auf Monterey.

Nach der suche hier im Forum habe ich folgenden Tip ausprobiert:
im Terminal die folgenden zwei zeilen eingegeben:
-------
cd /Applications/Steam.app/Contents/MacOS
./steam.sh
-------

danach ging Steam wieder

Ego
oxygennnnnn Dec 10, 2021 @ 12:23pm 
nice
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Date Posted: Nov 20, 2021 @ 10:48am
Posts: 19