I have been having problems with forge 1.12.2 for a few weeks. Besides it, other things like the RLcraft modpack don't open.
The last error log:
[20:09:32] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[20:09:32] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[20:09:32] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[20:09:32] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2768 for Minecraft 1.12.2 loading
[20:09:32] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft Launcher\runtime\jre-x64
[20:09:32] [main/INFO] [FML]: Searching C:\Users\samsung\AppData\Roaming\.minecraft\mods for mods
[20:09:32] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:09:32] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[20:09:32] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:09:32] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:09:32] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:09:34] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[20:09:34] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[20:09:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:09:34] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[20:09:35] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[20:09:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[20:09:35] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[20:09:35] [main/INFO] [net.minecraft.client.Minecraft]: Setting user: Viktor_the_Daddy
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.pickItem:key.mouse.middle
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.playerlist:key.keyboard.tab
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.advancements:key.keyboard.l
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.5:key.keyboard.5
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.6:key.keyboard.6
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.7:key.keyboard.7
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.8:key.keyboard.8
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.1:key.keyboard.1
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.2:key.keyboard.2
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.3:key.keyboard.3
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.4:key.keyboard.4
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.sprint:key.keyboard.left.control
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.forward:key.keyboard.w
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.drop:key.keyboard.q
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.back:key.keyboard.s
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.attack:key.mouse.left
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.use:key.mouse.right
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.saveToolbarActivator:key.keyboard.c
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.smoothCamera:key.keyboard.unknown
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.right:key.keyboard.d
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.jump:key.keyboard.space
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.sneak:key.keyboard.left.shift
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.spectatorOutlines:key.keyboard.unknown
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.left:key.keyboard.a
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.command:key.keyboard.slash
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.screenshot:key.keyboard.f2
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.hotbar.9:key.keyboard.9
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.togglePerspective:key.keyboard.f5
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.chat:key.keyboard.t
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.inventory:key.keyboard.e
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.fullscreen:key.keyboard.f11
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.loadToolbarActivator:key.keyboard.x
[20:09:39] [main/WARN] [net.minecraft.client.settings.GameSettings]: Skipping bad option: key_key.swapHands:key.keyboard.f
[20:09:39] [main/INFO] [net.minecraft.client.Minecraft]: LWJGL Version: 2.9.4
