Fatal error: Pak file corrupt or tampered with

Game mode: Single-player Online
Type of issue: Crash
Server type: PvE
Region: Europe
Mods?: No
Edition: Steam


Bug Description:

I started playing this game 4 days ago. I’m able to play for anything in between 5 min - 2 hours before I’m met with this error message:

“Pak file corrupt or tampered with. Please use steam option ‘Verify integrity of game files’ to repair games install. Exiting…”

I have no mods at all and I’ve never had any. Every time I get the error and the game shuts down I verify my files as suggested. But it still happens. I’ve tried verifying more times than I can count. Sometimes it finds a few files to download, sometimes it doesn’t find any. I’ve also tried a clean re-install, twice.


Steps to Reproduce:

1: Log in and start playing
2: Randomly get the error and shut down
3: Verify files
4: Repeat steps 1-4

Hypothesis:
When verifying, I noticed that it almost always downloads updates Conan along with Steam Redistributables. Have any of you mods heard of this problem from people playing on other platforms? Maybe the error lies with Steam?

Just FYI. Here are some things I’ve also tried, but to no avail.
Updating any drivers I could think of
Capping to 60 FPS via Nvidia control panel
Running as an admin
Disabling full screen optimizations
Running in compatibility mode for windows 7,8 and vista

Specs:
Operating system: Windows 10 PRo N 64-Bit (10.0 Build 19044)
Processor: Intel Core i7-3770K CPU @ 3.5HGz (8 CPUs), ~3.5GHz
Memory: 16384MB RAM
DirectX version: DirectX 12

You have created a really cool looking game and I would love to experience it fully.
Any help you are able to provide that would help solve this problem is greatly appreciated.
Thank you!

1 Like

Have you done any manual edits to files?

EDIT: check which files are the ones being re-downloaded, they will be the ones with the newest date. Then delete them and verify again to get a fresh copy.

The location of the pak files is here:

\steamapps\common\Conan Exiles\ConanSandbox\Content\Paks

1 Like

Hello Snuggles,

We’re really sorry that you are having issues while playing the game. We see that you’ve already tried verifying your local files on Steam. Could you please also try reinstalling the game completely and see if it helps?

1 Like

I also keep getting those errors at random, it started somewhere this year (2021).

You can check your log files and upload the one with the error on the report here, when the error occurs it’s writen on the log files with that exact wording, in the Saved\Logs directory (D:\SteamLibrary\steamapps\common\Conan Exiles\ConanSandbox\Saved\Logs).

Just out of curiosity is your windows in english or another language? Also is conan exiles in english or another language. I ask because on my log files most of the times the error occurs after loading some fonts pak, maybe it has something to do with localization between Conan, Steam, Windows.

I have not manually edited any files.
Yes, I have tried to delete all pak files and re-verified my game files. That worked for about 30 min, then I got the error again.
I appreciate the suggestion though! Thanks!

Hello!
Thank you for replying!
As I mentioned above, unfortunately, I have indeed tried to uninstall the game and re-installing it and the problem persisted.

Thank you for your reply!
I wasn’t able to attach the full log, but I’ll attach the last few lines (see below). I’m not sure how to read this, but it would seem that “GraniteSDK_0014_0014_5.pak” is the one causing the issue. I’ll do another full re-install and then try to remove this specific file when I get the next error.

[2021.12.14-19.19.04:294][294]LogOutputDevice:Display: Bug report upload completed with result code 200, took 0.433 seconds.
[2021.12.14-19.19.08:615][551]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0046_0046_4.pak added to pak precacher.
[2021.12.14-19.19.14:448][901]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0046_0046_3.pak added to pak precacher.
[2021.12.14-19.19.16:348][ 15]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0046_0046_c.pak added to pak precacher.
[2021.12.14-19.19.19:393][197]Network:Display: XBLEvents: “HS_CraftedObjects”: +1
[2021.12.14-19.19.20:750][279]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_1466_1466_8.pak added to pak precacher.
[2021.12.14-19.19.20:874][286]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0146_0146_5.pak added to pak precacher.
[2021.12.14-19.19.21:117][301]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0466_0466_f.pak added to pak precacher.
[2021.12.14-19.19.21:756][339]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0046_0046_9.pak added to pak precacher.
[2021.12.14-19.19.21:756][339]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0046_0046_b.pak added to pak precacher.
[2021.12.14-19.19.22:011][354]LogPakFile:Warning: Attempted to load forbidden filename: “…/…/…/ConanSandbox/Content/Maps/ConanSandbox/Gameplay/Camps_NPC/Camps-NPC_x1_y4-2.uasset”
[2021.12.14-19.19.22:014][355]LogPakFile:Warning: Attempted to load forbidden filename: “…/…/…/ConanSandbox/Content/Maps/ConanSandbox/Gameplay/Camps_NPC/Camps-NPC_x1_y4-2.uasset”
[2021.12.14-19.19.22:566][388]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0146_0146_2.pak added to pak precacher.
[2021.12.14-19.19.22:883][407]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0146_0146_c.pak added to pak precacher.
[2021.12.14-19.19.23:284][430]ItemInventory:Error: Data: Had to synchronously load the visual item class: /Game/Items/Weapons/Spear2h/BP_spear_2h.BP_spear_2h_C. This will flush the async loading queue and create some hitches when playing.
[2021.12.14-19.19.23:883][461]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_1466_1466_e.pak added to pak precacher.
[2021.12.14-19.19.29:366][789]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_1466_1466_b.pak added to pak precacher.
[2021.12.14-19.19.29:681][807]LogPakFile:Warning: Attempted to load forbidden filename: “…/…/…/ConanSandbox/Content/Maps/ConanSandbox/Art/Heightmap/Heightmap_x1_y4LOD/Heightmap_x1_y4_LOD1.uasset”
[2021.12.14-19.19.29:685][808]LogPakFile:Warning: Attempted to load forbidden filename: “…/…/…/ConanSandbox/Content/Maps/ConanSandbox/Art/Heightmap/Heightmap_x1_y4LOD/Heightmap_x1_y4_LOD1.uasset”
[2021.12.14-19.19.31:623][923]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0014_0014_5.pak added to pak precacher.
[2021.12.14-19.19.31:974][944]LogPakFile:Error: Pak chunk signing mismatch! Pak file has been corrupted or tampered with!
[2021.12.14-19.19.32:066][947]LogPakFile: New pak file …/…/…/ConanSandbox/Content/Paks/GraniteSDK_0146_0146_4.pak added to pak precacher.
[2021.12.14-19.19.37:081][555]LogWindows: FPlatformMisc::RequestExit(1)
[2021.12.14-19.19.37:081][555]Log file closed, 12/14/21 20:19:37

Ok, I tried it and it didn’t work. I did another clean re-install, got the same crash as always, deleted my faulty pak files and re-verified and then I got the error again after playing for about 5 mins.

I would really appreciate it if you could pass information about this issue on to the other devs if you haven’t already. This issue really have been a buzz kill.
Thank you in advance!

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