Unable to launch Steam application after installing an update [Macintosh]

[Herr Vanta]

When I logged in on Steam today I was notified that there was a recent update for Steam, so I chose to install the update. But after the update had been installed I couldn't open the Steam application at all and whenever I try to click on the application I always get a report from my computer which tells me that "steam_osx quit unexpectedly".

I managed to log in to Steam through my browser without getting this report, but I will get notified of this report when I try to launch a game without any succession. I am not very knowledgeable when it comes to programming, therefore I would appreciate it if someone could point out what the problem is with my Steam application in the report below:



-------------------------------------
Translated Report (Full Report Below)
-------------------------------------

Incident Identifier: 5A18CEA6-6B97-4049-A90C-78772C3724CA
CrashReporter Key: F8920AF7-2982-E37B-53A7-0D4517DF227A
Hardware Model: MacBookAir7,2
Process: steam_osx [1477]
Path: /Applications/Steam.app/Contents/MacOS/steam_osx
Identifier: com.valvesoftware.steam
Version: 1.5
Code Type: X86-64 (Native)
Role: Unspecified
Parent Process: launchd [1]
Coalition: com.valvesoftware.steam [883]

Date/Time: 2021-11-20 18:09:14.0890 +0100
Launch Time: 2021-11-20 18:09:13.7393 +0100
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

Highlighted by Thread: 0

Backtrace not available

No thread state (register information) available

Binary Images:
Binary images description not available

Error Formulating Crash Report:
_dyld_process_info_create failed with 6
dyld_process_snapshot_get_shared_cache failed
Failed to create CSSymbolicatorRef - corpse still valid ¯\_(ツ)_/¯

EOF

-----------
Full Report
-----------

{"app_name":"steam_osx","timestamp":"2021-11-20 18:09:16.00 +0100","app_version":"","slice_uuid":"f5901cd6-16e8-393a-b1ae-669ab50ce520","build_version":"1.5","platform":0,"bundleID":"com.valvesoftware.steam","share_with_app_devs":0,"is_first_party":1,"bug_type":"309","os_version":"macOS 12.0.1 (21A559)","incident_id":"5A18CEA6-6B97-4049-A90C-78772C3724CA","name":"steam_osx"}
{
"uptime" : 12000,
"procLaunch" : "2021-11-20 18:09:13.7393 +0100",
"procRole" : "Unspecified",
"version" : 2,
"userID" : 501,
"deployVersion" : 210,
"modelCode" : "MacBookAir7,2",
"procStartAbsTime" : 12638003664310,
"coalitionID" : 883,
"osVersion" : {
"train" : "macOS 12.0.1",
"build" : "21A559",
"releaseType" : "User"
},
"captureTime" : "2021-11-20 18:09:14.0890 +0100",
"incident" : "5A18CEA6-6B97-4049-A90C-78772C3724CA",
"bug_type" : "309",
"pid" : 1477,
"procExitAbsTime" : 12638336019661,
"cpuType" : "X86-64",
"procName" : "steam_osx",
"procPath" : "/Applications/Steam.app/Contents/MacOS/steam_osx",
"bundleInfo" : {"CFBundleVersion":"1.5","CFBundleIdentifier":"com.valvesoftware.steam"},
"parentProc" : "launchd",
"parentPid" : 1,
"coalitionName" : "com.valvesoftware.steam",
"crashReporterKey" : "F8920AF7-2982-E37B-53A7-0D4517DF227A",
"sip" : "enabled",
"isCorpse" : 1,
"exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGKILL (Code Signature Invalid)"},
"termination" : {"namespace":"CODESIGNING","flags":66,"code":1},
"extMods" : {"caller":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"system":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"targeted":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"warnings":0},
"legacyInfo" : {
"threadHighlighted" : 0
},
"trialInfo" : {
"rollouts" : [

],
"experiments" : [

]
},
"reportNotes" : [
"_dyld_process_info_create failed with 6",
"dyld_process_snapshot_get_shared_cache failed",
"Failed to create CSSymbolicatorRef - corpse still valid ¯\\_(ツ)_\/¯"
]
}

Model: MacBookAir7,2, BootROM 428.40.10.0.0, 2 processors, Dual-Core Intel Core i5, 1,8 GHz, 8 GB, SMC 2.27f2
Graphics: Intel HD Graphics 6000, Intel HD Graphics 6000, Built-In
Display: Color LCD, 1440 x 900 (Widescreen eXtended Graphics Array Plus), Main, MirrorOff, Online
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E424A544D4C41522D4E5544
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x483943434E4E4E424A544D4C41522D4E5544
AirPort: spairport_wireless_card_type_wifi (0x14E4, 0x117), Broadcom BCM43xx 1.0 (7.77.111.1 AirPortDriverBrcmNIC-1710.2)
AirPort:
Bluetooth: Version (null), 0 services, 0 devices, 0 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM0128G, 121,33 GB
USB Device: USB30Bus
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus: MacBook Air, Apple Inc., 27.2

[bitoverflow]

Same problem.
Solved by deleting Steam from applications, and redownload and install

[XenoChef]

I found no solution except to remove steam from my mac and re install

[Herr Vanta]

Thanks a lot for the help!
After both deleting and reinstalling Steam I was able to access the application without getting any notification from my computer that Steam quit unexpectedly.

I don't know if it played a key role for solving the problem but I also chose to download a new Steam installer instead of using my old installer. I simply downloaded a new installer by logging in to Steam through my internet browser.

[PS]: If anyone still has issues with launching steam after reinstalling it try deleting your Steam files by accessing your library. If you want to keep your game files delete every file except for the one named "steamapps".

[aguilard107]

Thanks for the help! Deleting Steam - COMPLETELY- and reinstalling SOLVED the problem for me! Here is the article that helped me delete Steam completely, while also saving the game data for when I reinstalled the app and wanted to play my previously saved games.

From

Business Insider: "How to delete the Steam gaming application on your Mac, and make sure it doesn't leave any data behind"

1. Toss your Steam app into the trash. This won't remove anything on its own, but it's a good first step. You can do this by dragging the icon from your Applications folder to the Trash icon, or by right-clicking the icon and selecting "Move to Trash."

2. While in the Applications folder, press Command + Shift + G. This will open a pop-up that asks you what folder you want to open. Enter "~/Library/Application Support" (without the quotes) and click "Go."

3. In the new folder that opens, find the "Steam" folder and move it to the Trash.

At this point, dragging this folder as well as the Steam application to the Trash will delete all of your Steam data.

If you'd like to save your game data, in case you decide to reinstall Steam in the future, delete all of the files in the "Steam" folder except for the SteamApps sub-folder.

Keep it there on your local hard drive, or copy it to an external drive, and move it back when you're ready to reinstall Steam.

Either way, you've now successfully deleted Steam on your Mac.

https://www.businessinsider.com/how-to-delete-steam-on-mac