Two Posted December 3, 2022 Share Posted December 3, 2022 (edited) Hi, I am trying to help a modder to pin down an issue that's happening on my system and I am trying to figure out how to set the log level of forge file logging to debug. My attempts at googling and using the usual log4j settings have failed. I do not have access to the source code of the mod, so I need to set the log level on the command line. Edited December 3, 2022 by Two Quote My Mods New Dawn - A completely new terrain engine for Minecraft TwoTility - Blocks and Items for a better Minecraft TwoGraves - Keeps your items safe on death Link to comment Share on other sites More sharing options...
ChampionAsh5357 Posted December 5, 2022 Share Posted December 5, 2022 Basically, add '-Dforge.logging.console.level=debug -Dforge.logging.markers=REGISTRIES' to your JVM arguments in your game profile. Quote Link to comment Share on other sites More sharing options...
Two Posted December 5, 2022 Author Share Posted December 5, 2022 Thank you, but this doesn't actually change anything about the log output. I also tried to set the file logger to debug, but again: no change in the log output. Quote My Mods New Dawn - A completely new terrain engine for Minecraft TwoTility - Blocks and Items for a better Minecraft TwoGraves - Keeps your items safe on death Link to comment Share on other sites More sharing options...
ChampionAsh5357 Posted December 5, 2022 Share Posted December 5, 2022 1 hour ago, Two said: Thank you, but this doesn't actually change anything about the log output. I also tried to set the file logger to debug, but again: no change in the log output. Did you check the debug.log in the logs folder? Quote Link to comment Share on other sites More sharing options...
Two Posted December 7, 2022 Author Share Posted December 7, 2022 There is no debug log in the logs folder. Quote My Mods New Dawn - A completely new terrain engine for Minecraft TwoTility - Blocks and Items for a better Minecraft TwoGraves - Keeps your items safe on death Link to comment Share on other sites More sharing options...
warjort Posted December 7, 2022 Share Posted December 7, 2022 (edited) If you are using curseforge, you need to enable the forge debug.log in its settings. Otherwise, it's likely something you are doing when trying to change the log configuration is incorrect and you have broken the logging. Since you don't say what you have actually done, it's impossible to help further. Forge's debug logging is enabled by default, when launchers don't elect to turn it off. Edited December 7, 2022 by warjort Quote Boilerplate: If you don't post your logs/debug.log we can't help you. For curseforge you need to enable the forge debug.log in its minecraft settings. You should also post your crash report if you have one. If there is no error in the log file and you don't have a crash report then post the launcher_log.txt from the minecraft folder. Again for curseforge this will be in your curseforge/minecraft/Install Large files should be posted to a file sharing site like https://gist.github.com You should also read the support forum sticky post. Link to comment Share on other sites More sharing options...
Two Posted December 8, 2022 Author Share Posted December 8, 2022 (edited) I was setting the debug defines on the commandline used to start Minecraft in the Minecraft launcher as ChampionAsh535 suggested, this had zero effect. However enabling debugging in Curseforge did it. I have no idea what Curse is doing to suppress the commandlines, but if running with the Curseforge Launcher using that specific setting seems to be the only way to activate debug logs. Which is a bit odd, because it should listen to the commandline settings, especially if enforcing something like a log4j config file, but it is not. Thanks for the help! Edited December 8, 2022 by Two Quote My Mods New Dawn - A completely new terrain engine for Minecraft TwoTility - Blocks and Items for a better Minecraft TwoGraves - Keeps your items safe on death Link to comment Share on other sites More sharing options...
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