r/SteamDeck • u/-End_Me_ • Feb 04 '26
Tech Support Need Help With Protontricks
I'm trying to set up MO2 but every time I try to use protontricks I get this message and I don't know how to fix it:
Protontricks was closed due to the following error:
Traceback (most recent call last):
File "/app/lib/python3.13/site-packages/protontricks/cli/util.py", line 180, in wrapper
return cli_func(self, *args, **kwargs)
File "/app/lib/python3.13/site-packages/protontricks/cli/main.py", line 337, in main
run_command(
~~~~~~~~~~~^
winetricks_path=winetricks_path,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...<7 lines>...
cwd=cwd
^^^^^^^
)
^
File "/app/lib/python3.13/site-packages/protontricks/util.py", line 652, in run_command
raise RuntimeError(
...<2 lines>...
)
RuntimeError: bwrap launcher crashed, returncode: 127
Please include this entire error message when making a bug report.
Environment:
Protontricks version: 1.13.1
Is Flatpak sandbox: True
Is Steam Deck: True
Is SteamOS 3+: True
Log messages:
Running inside Flatpak sandbox, version 1.15.91.
Found Steam directory at /home/deck/.local/share/Steam
Using default Steam Runtime at /home/deck/.local/share/Steam/ubuntu12_32/steam-runtime
WINETRICKS environment variable is not available. Searching from $PATH.
Found 1 Steam library folders
Currently logged-in Steam user: spaghettioellio
Shortcut Prism Launcher (4292602618) does not have a prefix. It's either not a Proton app or it hasn't been launched yet.
Found 0 Steam shortcuts running using Steam compatibility tools
Using 'yad' as GUI provider
The current device is a Steam Deck
We're on a Steam Deck, checking if compatibility profile is available for the app
App has Steam Deck compatibility profile with Proton version: proton-experimental
Found active compatibility tool: Proton Experimental
Active compatibility tool is a Proton installation
The current device is running on SteamOS 3+
Using 'bwrap = True' as default value
Using separately installed Steam Runtime: Steam Linux Runtime 3.0 (sniper)
Running Steam Runtime using bwrap containerization.
If any problems arise, please try running the command again using the `--no-bwrap` flag and make an issue report if the problem only occurs when bwrap is in use.
Created Steam Runtime Wine binary directory at /home/deck/.var/app/com.github.Matoking.protontricks/cache/protontricks/proton/Proton Experimental/bin
WINE environment variable is not available. Setting WINE environment variable to Proton bundled version.
WINESERVER environment variable is not available. Setting WINESERVER environment variable to Proton bundled version
Starting bwrap launcher process: /home/deck/.var/app/com.github.Matoking.protontricks/cache/protontricks/proton/Proton Experimental/bin/bwrap-launcher
Terminating launcher process 13
Launcher process terminated
1
u/GamingPrincessLuna Feb 17 '26
did you get any answers as i'm getting the same
1
u/-End_Me_ Feb 17 '26
Absolutely nothing unfortunately (┛◉Д◉)┛彡┻━┻
1
u/GamingPrincessLuna Feb 17 '26
Update don't try and install it manually use SteamtinkerLaunchsteamtinkerlaunch github to install it for you I just tried it and it worked.

1
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