hi i am making a personal mod pack when i added ItemPhysic_Full_1.4.19_mc1.12.2.jar and tried to start the game it would not even get to the forge loading screen when removed it would boot and load worlds just fine i am not sure with which mod it might be clashing with as it didn't even start
thanks

crash report
[13:20:33] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[13:20:33] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[13:20:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[13:20:33] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2768 for Minecraft 1.12.2 loading
[13:20:33] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_181, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_181
[13:20:34] [main/INFO] [FML]: Searching C:\Users\User\AppData\Roaming.minecraft\mods for mods
[13:20:34] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in BetterFoliage-MC1.12-2.2.0.jar. This is not recommended, @mods should be in a separate jar from the coremod.
[13:20:34] [main/WARN] [FML]: The coremod BetterFoliageLoader (mods.betterfoliage.loader.BetterFoliageLoader) is not signed!
[13:20:34] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in ChunkAnimator-MC1.12-1.2.jar. This is not recommended, @mods should be in a separate jar from the coremod.
[13:20:34] [main/WARN] [FML]: The coremod lumien.chunkanimator.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[13:20:34] [main/WARN] [FML]: The coremod LoadingPlugin (lumien.chunkanimator.asm.LoadingPlugin) is not signed!
[13:20:34] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in Forgelin-1.8.2.jar. This is not recommended, @mods should be in a separate jar from the coremod.
[13:20:34] [main/WARN] [FML]: The coremod net.shadowfacts.forgelin.preloader.ForgelinPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[13:20:34] [main/WARN] [FML]: The coremod ForgelinPlugin (net.shadowfacts.forgelin.preloader.ForgelinPlugin) is not signed!
[13:20:34] [main/WARN] [FML]: The coremod com.creativemd.itemphysic.ItemPatchingLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[13:20:34] [main/WARN] [FML]: The coremod ItemPatchingLoader (com.creativemd.itemphysic.ItemPatchingLoader) is not signed!
[13:20:34] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.12.2_HD_U_E3.jar
[13:20:34] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:20:34] [main/INFO] [LaunchWrapper]: Loading tweak class name optifine.OptiFineForgeTweaker
[13:20:34] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[13:20:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:20:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[13:20:34] [main/INFO] [LaunchWrapper]: Calling tweak class optifine.OptiFineForgeTweaker
[13:20:34] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: acceptOptions
[13:20:34] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: injectIntoClassLoader
[13:20:34] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:221]: OptiFine ClassTransformer
[13:20:34] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:221]: OptiFine ZIP file: C:\Users\User\AppData\Roaming.minecraft\mods\OptiFine_1.12.2_HD_U_E3.jar
[13:20:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[13:20:36] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[13:20:36] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[13:20:36] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[13:20:36] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[13:20:36] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
Exception in thread "main" [13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: java.lang.NoClassDefFoundError: com/creativemd/itemphysic/ItemTransformer
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at com.creativemd.itemphysic.ItemPatchingLoader.getASMTransformerClass(ItemPatchingLoader.java:16)
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:128)
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: Caused by: java.lang.ClassNotFoundException: com.creativemd.itemphysic.ItemTransformer
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)
[13:20:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: ... 4 more
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.NoClassDefFoundError: com/creativemd/creativecore/transformer/CreativeTransformer
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.defineClass1(Native Method)
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.defineClass(Unknown Source)
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.security.SecureClassLoader.defineClass(Unknown Source)
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: ... 6 more
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.ClassNotFoundException: com.creativemd.creativecore.transformer.CreativeTransformer
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:101)
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)
[13:20:36] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: ... 10 more
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

You have to install CreativeCore as well.

oh ok thanks for the swift reply thought it would just give dependencies the first time the game crashed like this
thanks