FTB not responding, crashing and generally not working

[Pita]

I used to play FTB a lot a couple of weeks ago, but when I wanted to start it again it just keeps on crashing or not even showing up when started. I've tried to reinstall it many times, allocated ram and I've updated everything there is to. How can I possibly fix this?

(It always crashes at this point)

 

[zartine]

mine is doing the same thing trying to run revelations and it will sometimes get into a game then crash, don't know what to do to fix it

 

[Pita]

I don't know what is wrong with it. The mods seem to be fine and everything is updated. It is really annoying that it just starts crashing everytime I try to start it.

 

[JELLY]

@zartine and @Pita there's a good chance you aren't allocating enough ram.
To allocate more, refer to the info below:
• FTBApp: Modpacks > My Modpacks > Hover over the pack > Click the three dots > Settings > Instance Memory
• Twitch: Mods > Minecraft > My Modpacks > Click the modpack's icon > Settings (cog icon in top right) > Profile Options > Memory Settings
• MultiMC: Settings > Java > Memory
I'd recommend between 4gb (4000mb) and 8gb (8000mb) for most packs. Do not allocate more than your computer's ram minus 2. E.g. for an 8gb system, do not allocate more than 6gb. You can check how much ram you have by opening the "System Information" application and referring to the "Total Physical Memory" value.

 

[Pita]

I have allocated ram. I don't think the problem lies there.

 

[zartine]

I allocated 6g and it was running good for a little bit then started crashing again, what other issues could be going on?

 

[JELLY]

I allocated 6g and it was running good for a little bit then started crashing again, what other issues could be going on?

If it was running and then crashed, it will have made a crash report in Modpack Directory > crash-reports, please attach the latest file in that folder and I'll take a look at it

 

[zartine]

Ok once I get the computer hooked back up I will attach it and let you see it.

 

[JELLY]

@Pita probably worth you looking for a crash report as above, if there isn't a relevant one then refer to the /logs/ folder for the latest.log file

 

[zartine]

Here is one of the errors I get, mostly the same thing just different numbers in the beginning. If it helps Im running 8g DDR3, I5 processer and GTX 660 graphics card.

 

[zartine]

I am taking my PC to a friend that is going to wipe my system and fresh install windows 10 in hopes that maybe I have to much crap and that will solve my issue before I spend money on upgrading right away, so any suggestions I will try them tomorrow when I get the computer back from him

 

[JELLY]

I am taking my PC to a friend that is going to wipe my system and fresh install windows 10 in hopes that maybe I have to much crap and that will solve my issue before I spend money on upgrading right away, so any suggestions I will try them tomorrow when I get the computer back from him

Last time I had someone run into this problem, they solved it by updating their graphics card drivers. Since your card is around 6-7 years old I'd predict it's the same problem. Try updating them

 

[zartine]

I updated the drivers the other day, it's strange cause I was able to play skyrim med settings never crashed and ran just fine.

 

[Pita]

@Pita probably worth you looking for a crash report as above, if there isn't a relevant one then refer to the /logs/ folder for the latest.log file

[18:17:22] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[18:17:23] [main/INFO]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[18:17:23] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[18:17:23] [main/INFO]: Forge Mod Loader version 14.23.5.2821 for Minecraft 1.12.2 loading
[18:17:23] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Users\Petter\Twitch\Minecraft\Install\runtime\jre-x64
[18:17:24] [main/INFO]: Searching C:\Users\Petter\Twitch\Minecraft\Instances\FTB Presents Direwolf20 1.12 (1)\mods for mods
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in Aroma1997Core-1.12.2-2.0.0.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod aroma1997.core.coremod.CoreMod does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in astralsorcery-1.12.2-1.10.11.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod hellfirepvp.astralsorcery.core.AstralCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/INFO]: [AstralCore] Initialized.
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in CTM-MC1.12.2-0.3.3.22.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod team.chisel.ctm.client.asm.CTMCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod CTMCorePlugin (team.chisel.ctm.client.asm.CTMCorePlugin) is not signed!
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in EnderCore-1.12.2-0.5.45.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in foamfix-0.10.3-1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod pl.asie.foamfix.coremod.FoamFixCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in Forgelin-1.8.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod net.shadowfacts.forgelin.preloader.ForgelinPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod ForgelinPlugin (net.shadowfacts.forgelin.preloader.ForgelinPlugin) is not signed!
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in OpenComputers-MC1.12.2-1.7.4.153.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod li.cil.oc.common.launch.TransformerLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod TransformerLoader (li.cil.oc.common.launch.TransformerLoader) is not signed!
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in ResourceLoader-MC1.12.1-1.5.3.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod lumien.resourceloader.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod blusunrize.immersiveengineering.common.asm.IELoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:25] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:17:25] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[18:17:25] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:17:25] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:17:25] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:17:28] [main/INFO]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[18:17:28] [main/INFO]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[18:17:28] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:17:28] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:17:28] [main/INFO]: Finished data injection.

 

[ThatGuyDavion]

[18:17:22] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[18:17:23] [main/INFO]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[18:17:23] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[18:17:23] [main/INFO]: Forge Mod Loader version 14.23.5.2821 for Minecraft 1.12.2 loading
[18:17:23] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Users\Petter\Twitch\Minecraft\Install\runtime\jre-x64
[18:17:24] [main/INFO]: Searching C:\Users\Petter\Twitch\Minecraft\Instances\FTB Presents Direwolf20 1.12 (1)\mods for mods
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in Aroma1997Core-1.12.2-2.0.0.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod aroma1997.core.coremod.CoreMod does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in astralsorcery-1.12.2-1.10.11.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod hellfirepvp.astralsorcery.core.AstralCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/INFO]: [AstralCore] Initialized.
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in CTM-MC1.12.2-0.3.3.22.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod team.chisel.ctm.client.asm.CTMCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod CTMCorePlugin (team.chisel.ctm.client.asm.CTMCorePlugin) is not signed!
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in EnderCore-1.12.2-0.5.45.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in foamfix-0.10.3-1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod pl.asie.foamfix.coremod.FoamFixCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in Forgelin-1.8.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod net.shadowfacts.forgelin.preloader.ForgelinPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod ForgelinPlugin (net.shadowfacts.forgelin.preloader.ForgelinPlugin) is not signed!
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in OpenComputers-MC1.12.2-1.7.4.153.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod li.cil.oc.common.launch.TransformerLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod TransformerLoader (li.cil.oc.common.launch.TransformerLoader) is not signed!
[18:17:24] [main/WARN]: Found FMLCorePluginContainsFMLMod marker in ResourceLoader-MC1.12.1-1.5.3.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[18:17:24] [main/WARN]: The coremod lumien.resourceloader.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:24] [main/WARN]: The coremod blusunrize.immersiveengineering.common.asm.IELoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[18:17:25] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:17:25] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[18:17:25] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:17:25] [main/INFO]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[18:17:25] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:17:28] [main/INFO]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[18:17:28] [main/INFO]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[18:17:28] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:17:28] [main/INFO]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[18:17:28] [main/INFO]: Finished data injection.

My log is similar, if not the same as yours. I'm playing through FTB Interactions and the crashes started when the pack received an update. I fixed it by upping the allocated RAM from 8GB to 9.

Note: The pack refused to update because the "instance was not found" before I allocated more RAM. After doing so, the update and launch were smooth again.