Hello ! I hope you good, i'm not that much because of a short problem.
When i press play, the launcher close and then it does like the game would actually launch but it just goes back to Technic launcher.
It's not a problem of java memory and my Improved Adventures.zip is ok.
Modpack : https://www.technicpack.net/modpack/improved-adventures.1428243
Latest logs.
[12:18:33] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[12:18:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[12:18:33] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2837 for Minecraft 1.12.2 loading
[12:18:33] [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
[12:18:33] [main/INFO] [FML]: Searching C:\Users\RemAEyzKa\AppData\Roaming\.technic\modpacks\improved-adventures\mods for mods
[12:18:33] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.12.2_HD_U_E2.jar
[12:18:33] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[12:18:33] [main/INFO] [LaunchWrapper]: Loading tweak class name optifine.OptiFineForgeTweaker
[12:18:33] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[12:18:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[12:18:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[12:18:33] [main/INFO] [LaunchWrapper]: Calling tweak class optifine.OptiFineForgeTweaker
[12:18:33] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: acceptOptions
[12:18:33] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: injectIntoClassLoader
[12:18:33] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:221]: OptiFine ClassTransformer
[12:18:33] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:221]: OptiFine ZIP file: C:\Users\RemAEyzKa\AppData\Roaming\.technic\modpacks\improved-adventures\mods\OptiFine_1.12.2_HD_U_E2.jar
[12:18:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[12:18:34] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[12:18:34] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[12:18:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[12:18:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[12:18:34] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[12:18:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[12:18:34] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: getLaunchArguments
[12:18:34] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[12:18:35] [main/INFO] [STDOUT]: [net.minecraft.client.main.Main:main:55]: Completely ignored arguments: [--icon, C:\Users\RemAEyzKa\AppData\Roaming\.technic\assets\packs\improved-adventures\icon.png, --title, Improved Adventures]
[12:18:35] [main/INFO] [Config]: [OptiFine] *** Reflector Forge ***
[12:18:35] [main/INFO] [Config]: [OptiFine] (Reflector) Class not present: mods.betterfoliage.client.BetterFoliageClient
[12:18:35] [main/INFO] [Config]: [OptiFine] (Reflector) Class not present: net.minecraftforge.fml.common.asm.transformers.BlamingTransformer
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: java.lang.ExceptionInInitializerError
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraftforge.common.ForgeHooks.<clinit>(ForgeHooks.java:338)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at java.lang.Class.forName0(Native Method)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at java.lang.Class.forName(Unknown Source)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.optifine.reflect.ReflectorClass.getTargetClass(ReflectorClass.java:47)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.optifine.reflect.ReflectorClass.<init>(ReflectorClass.java:26)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.optifine.reflect.ReflectorClass.<init>(ReflectorClass.java:17)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.optifine.reflect.Reflector.<clinit>(Reflector.java:264)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraft.client.renderer.vertex.DefaultVertexFormats.<clinit>(DefaultVertexFormats.java:16)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraftforge.client.ForgeHooksClient$LightGatheringTransformer.<clinit>(ForgeHooksClient.java:602)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraftforge.client.ForgeHooksClient.<clinit>(ForgeHooksClient.java:645)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraft.client.Minecraft.<init>(Minecraft.java:335)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraft.client.main.Main.main(SourceFile:123)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at java.lang.reflect.Method.invoke(Unknown Source)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
[12:18:35] [main/INFO] [STDERR]: [net.optifine.reflect.ReflectorClass:getTargetClass:55]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[12:18:35] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.RuntimeException: Accessed Items before Bootstrap!
[12:18:35] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at net.minecraft.init.Items.<clinit>(SourceFile:9)
[12:18:35] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: ... 18 more
[12:18:36] [main/WARN] [Config]: [OptiFine] (Reflector) More than one method found: net.minecraft.potion.Potion.renderHUDEffect
[12:18:36] [main/WARN] [Config]: [OptiFine] (Reflector) - public void net.minecraft.potion.Potion.renderHUDEffect(net.minecraft.potion.PotionEffect,net.minecraft.client.gui.Gui,int,int,float,float)
[12:18:36] [main/WARN] [Config]: [OptiFine] (Reflector) - public void net.minecraft.potion.Potion.renderHUDEffect(int,int,net.minecraft.potion.PotionEffect,net.minecraft.client.Minecraft,float)
[12:18:36] [main/INFO] [Config]: [OptiFine] *** Reflector Vanilla ***
[12:18:36] [Client thread/INFO] [net.minecraft.client.Minecraft]: Setting user: XanderKhan
[12:18:37] [Client thread/ERROR] [LaunchWrapper]: Unable to launch
java.lang.reflect.InvocationTargetException: null
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_181]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_181]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: java.lang.NoClassDefFoundError: Could not initialize class net.minecraft.init.Items
at net.minecraft.potion.PotionHelper.func_185207_a(PotionHelper.java:154) ~[akh.class:?]
at net.minecraft.init.Bootstrap.func_151354_b(Bootstrap.java:504) ~[ni.class:?]
at net.minecraft.client.Minecraft.<init>(Minecraft.java:365) ~[bib.class:?]
at net.minecraft.client.main.Main.main(SourceFile:123) ~[Main.class:?]
... 6 more
[12:18:37] [Client thread/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[12:18:37] [Client thread/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49)
[12:18:37] [Client thread/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.SecurityManager.checkExit(Unknown Source)
[12:18:37] [Client thread/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.Runtime.exit(Unknown Source)
[12:18:37] [Client thread/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.System.exit(Unknown Source)
[12:18:37] [Client thread/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[12:18:37] [Client thread/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)