Crashing on launch when installed, incompatible with GalacticCraft and others?

[IdkWhatNameThingyToPut]

It crashes with no crash log and gives exit code 1 with GalacticCraft installed, but then if i remove those it'll boot up just enough to now say FoamFix is crashing it now too. I don't mean to be rude or toxic and sorry if I come across that way but my whole entire modpack works perfectly fine without this one single mod installed the moment it's installed it's instant crashing.

I've also looked around and saw that it could be a problem with "mixins" or whatever those are and that renaming the file to make it like "load first" might help but it's done nothing I've tried things like "_VanillaFix", "_aVanillaFix", "!aVanillaFix" and it is still crashing and I've also tried the "mixin" compat mod with it and it still crashes and at the same time too.

I will attach a crash log here so you atleast have something to go off of that I was able to actually get because other times it doesnt even give a crash log.

crash-2024-08-21_15.09.46-client.txt

• Another edit I ended up finding out Complementary Shaders (version r5.2.2) was crashing my game on launch every time, I don't know if it is or not but I think it might be an incompatible issue with this mod maybe? There was also a galacticraft addon mod (not the GalacticCraft legacy mod it was a different one that was an addon mod) but I can't remember the name of it but once that removed some crashing stopped too I think so pls be careful what you install. (This was all on 1.12.2 modded minecraft btw)

Also the only way I've been able to get this mod to work with the renaming method I've seen suggested is with "!aVanillaFix" the other ways with underscores in the names don't really work for me. Anyway I wanted to come back and say that in case it could help someone in the future and to also hopefully have problems solved one day.

[Pingu-Pox]

Adding to this since I am going through it as well. I recently updated Galacticraft in my own personal modpack. I also use Galacticraft addons as well, and spent a little bit isolating the issue.

More Planets
This add-on recently started requiring MixinBooter and an update to the SteveKunG's-Lib. Reverting this add-on to a version where it didn't need MixinBooter (or removing all three jar files altogether) solves my specific problem with VanillaFix throwing errors on launch. Not sure I am going to update my Galacticraft stack passed 4.0.2 since I can't get 4.0.6 with all the add-ons working whilst VanillaFix is present.

EDIT: Looks like someone made a PR that fixes my issue, so I will test that out.
#344

[IdkWhatNameThingyToPut]

Adding to this since I am going through it as well. I recently updated Galacticraft in my own personal modpack. I also use Galacticraft addons as well, and spent a little bit isolating the issue.

More Planets This add-on recently started requiring MixinBooter and an update to the SteveKunG's-Lib. Reverting this add-on to a version where it didn't need MixinBooter (or removing all three jar files altogether) solves my specific problem with VanillaFix throwing errors on launch. Not sure I am going to update my Galacticraft stack passed 4.0.2 since I can't get 4.0.6 with all the add-ons working whilst VanillaFix is present.

EDIT: Looks like someone made a PR that fixes my issue, so I will test that out. #344

Hi sorry for the late reply, I think when I was dealing with this problem I also realised it doesn't work with the Universal Tweaks mod which was really annoying. I also believe this breaks a mod called Prehistoric Nature (you can see them talk about it on their curseforge page here https://www.curseforge.com/minecraft/mc-mods/prehistoric-nature).

I don't know if this mod will work or not but you could try this mod too: https://www.curseforge.com/minecraft/mc-mods/vanillaicecreamfix

I don't mean to self-promote or anything I'm just trying to help but I thought I'd also add that I have a modpack on CurseForge that is based around some of the latest client and server performance mods and it is compatible with GalacticCraft, Universal Tweaks, More Planets and also Optifine too. It's called Froggy's Performance Collection (link here https://www.curseforge.com/minecraft/modpacks/froggys-performance-collection) and it's for modded minecraft 1.12.2

Hope that helps

[Pingu-Pox]

Hi sorry for the late reply, I think when I was dealing with this problem I also realised it doesn't work with the Universal Tweaks mod which was really annoying. I also believe this breaks a mod called Prehistoric Nature (you can see them talk about it on their curseforge page here https://www.curseforge.com/minecraft/mc-mods/prehistoric-nature).

I don't know if this mod will work or not but you could try this mod too: https://www.curseforge.com/minecraft/mc-mods/vanillaicecreamfix

I don't mean to self-promote or anything I'm just trying to help but I thought I'd also add that I have a modpack on CurseForge that is based around some of the latest client and server performance mods and it is compatible with GalacticCraft, Universal Tweaks, More Planets and also Optifine too. It's called Froggy's Performance Collection (link here https://www.curseforge.com/minecraft/modpacks/froggys-performance-collection) and it's for modded minecraft 1.12.2

Hope that helps

Hey thanks for the suggestion. I ended up rebuilding my modpack with cleanroommc, fugue, and vintagium. Performance is through the roof I just decided to leave vanilla fix out. If I start having ctd then I will worry about it then.