Protontricks won't open

[hagiomassaru]

Today I went to use Protontricks to manage my Steam prefixes, and this message appeared:

Protontricks was closed due to the following error:

Found no games. You need to launch a game at least once before Protontricks can find it.

=============

Please include this entire error message when making a bug report.
Environment:

Protontricks version: 1.14.1
Is Flatpak sandbox: True
Is Steam Deck: False
Is SteamOS 3+: False

Log messages:

Found Steam directory at /home/massaru/.steam/debian-installation
Running inside Flatpak sandbox, version 1.14.6.
Using default Steam Runtime at /home/massaru/.steam/debian-installation/ubuntu12_32/steam-runtime
WINETRICKS environment variable is not available. Searching from $PATH.
Steam library folder /media/massaru/2B69C97B1DD9DCAB/SteamLibrary in Steam configuration does not exist
Found 3 Steam library folders
Could not load manifest /home/massaru/.steam/debian-installation/steamapps/appmanifest_228980.acf due to insufficient permissions. Error: [Errno 13] Permission denied: '/media/massaru/2B69C97B1DD9DCAB/SteamLibrary'
Could not load manifest /mnt/e22dbeba-5b7e-4344-ae23-6965a0787b09/SteamLibrary/steamapps/appmanifest_678960.acf due to insufficient permissions. Error: [Errno 13] Permission denied: '/media/massaru/2B69C97B1DD9DCAB/SteamLibrary'
Could not load manifest /mnt/e22dbeba-5b7e-4344-ae23-6965a0787b09/SteamLibrary/steamapps/appmanifest_282070.acf due to insufficient permissions. Error: [Errno 13] Permission denied: '/media/massaru/2B69C97B1DD9DCAB/SteamLibrary'

.........

[Matoking]

Protontricks cannot access the /media/massaru/2B69C97B1DD9DCAB/SteamLibrary directory, which probably contains the games you have installed? Can you check what the permissions and owners are with the following command?

$ ls -lh /media/massaru/2B69C97B1DD9DCAB/SteamLibrary

I'm guessing the Steam client should be running as massaru user, so all the directories and files should be accessible by it. If some other user is shown as the user (eg. not massaru:massaru), then that should be fixed.

[SecularSteve]

Ditto for me:

/home/deck/.var/app/com.github.Matoking.protontricks/cache/protontricks/proton/Proton Experimental/bin/wine cmd.exe /c echo '%AppData%' returned empty string, error message "steam-runtime-launch-client[1016]: W: The --socket option is deprecated. Prefer to use the session bus. ntsync: up and running. Failed loading SDL3 library."

[Matoking]

Ditto for me:

/home/deck/.var/app/com.github.Matoking.protontricks/cache/protontricks/proton/Proton Experimental/bin/wine cmd.exe /c echo '%AppData%' returned empty string, error message "steam-runtime-launch-client[1016]: W: The --socket option is deprecated. Prefer to use the session bus. ntsync: up and running. Failed loading SDL3 library."

Both messages look unrelated to OP's issue.

First warning (--socket option is deprecated) is harmless and can be ignored.

Failed loading SDL3 library is different and might have a number of causes. But unlikely to be related to filesystem permissions.

[hagiomassaru]

Thank you very much! I was able to solve it by doing what Matoking said. I gave permission using Fatseal for the folder that is in my games. Thank you for your attention and sorry for the inconvenience.