You can create an issue on GitHub. Before doing so, please check if your issue is related to any of the following known issues.
Whenever I run a Winetricks command, I see the warning
warning: You are using a 64-bit WINEPREFIX. Note that many verbs only install 32-bit versions of packages. If you encounter problems, please retest in a clean 32-bit WINEPREFIX before reporting a bug.. Is this a problem?
Proton uses 64-bit Wine prefixes, which means you will see this warning with every game. You can safely ignore the message if the command otherwise works.
When I'm trying to run a Protontricks command such as
protontricks <appid> foobar, I get the errorUnknown arg foobar.
Your Winetricks installation might be outdated, which means your Winetricks installation doesn't support the verb you are trying to use (foobar in this example). Some distros such as Debian might ship very outdated versions of Winetricks. To ensure you have the latest version of Winetricks, see the installation instructions on the Winetricks repository.
When I'm trying to run a Protontricks command such as
protontricks <appid> --no-bwrap foobar, I get the errorUnknown option --no-bwrap.
You need to provide Protontricks specific options before the app ID. This is because all parameters after the app ID are passed directly to Winetricks; otherwise, Protontricks cannot tell which options are related to Winetricks and which are not. In this case, the correct command to run would be protontricks --no-bwrap <appid> foobar.
When I'm trying to run a Winetricks command, I get the error
command cabextract ... returned status 1. Aborting.
This is a known issue with cabextract, which doesn't support symbolic links created by Proton 5.13 and newer.
As a workaround, you can remove the problematic symbolic link in the failed command and run the command again. Repeat this until the command finishes successfully.
You can also check the Winetricks issue on GitHub.