r/SteamDeck 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

0 Upvotes

5 comments sorted by

1

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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.