Debugging Launcher and Patcher

Getting the logs

Launcher and Patcher logs is usually the first thing you should be looking into. Here’s the list of where Launcher and Patcher logs can be found.

Operating System Application Location
Windows launcher.exe launcher-log.txt
Windows patcher\Patcher.exe patcher\Patcher_Data\output_log.txt
GNU/Linux launcher launcher-log.txt next to launcher binary
GNU/Linux patcher/Patcher ~/.config/unity3d/UpSoft/PatchKit Patcher/Player.log
Mac OSX ~/Library/Application Support/Launcher/launcher-log.txt
Mac OSX ~/Library/Logs/Unity/Player.log

Watch out that both launcher and patcher logs will get overwritten as soon as you will start your game again. If you want to keep it (to send it to for example), you have to make a copy.

Command line arguments

Patcher should be ran with following command line arguments:

patcher.exe --installdir "dir" --secret "secret" --readable

You can try and launch it with your custom installdir and secret. Remember to always pass readable, because otherwise patcher will expect an encoded secret instead of a string.

Environment variables

Patcher behavior can be overriden by setting up those environment variables.

Variable Name Description
PK_PATCHER_FORCE_SECRET Set it to application secret to forcefully change what game should be downloaded.
PK_PATCHER_FORCE_VERSION Change the latest game version to given one. This is internal version id starting from 1.

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