Forge 1.12.2 keeps crashing before game can start

[CheeseCake33]

Spoiler   14:47:24 launcher main info Preparing to launch minecraft client for 1.12.2-forge1.12.2-14.23.2.2611 14:47:24 launcher main warn Couldn't get hash for jline/jline/2.13/jline-2.13.jar from http://files.minecraftforge.net/maven/jline/jline/2.13/jline-2.13.jar.sha1: HTTP 404: Not Found 14:47:24 launcher main warn Couldn't get hash for com/typesafe/config/1.2.1/config-1.2.1.jar from http://files.minecraftforge.net/maven/com/typesafe/config/1.2.1/config-1.2.1.jar.sha1: HTTP 404: Not Found 14:47:24 launcher main warn Couldn't get hash for org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar.sha1: HTTP 404: Not Found 14:47:24 launcher main warn Couldn't get hash for com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar from http://files.minecraftforge.net/maven/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar.sha1: HTTP 404: Not Found 14:47:24 launcher main warn Couldn't get hash for 1.12.2 jar from https://s3.amazonaws.com/Minecraft.Download/versions/1.12.2/1.12.2.jar.sha1: HTTP 403: Forbidden 14:47:24 launcher main warn Couldn't get hash for org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar.sha1: HTTP 404: Not Found 14:47:24 launcher main warn Couldn't get hash for net/minecraftforge/forge/1.12.2-14.23.2.2611/forge-1.12.2-14.23.2.2611.jar from http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.12.2-14.23.2.2611/forge-1.12.2-14.23.2.2611.jar.sha1: HTTP 404: Not Found 14:47:24 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\versions\1.12.2/1.12.2.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:24 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\net/minecraftforge/forge/1.12.2-14.23.2.2611/forge-1.12.2-14.23.2.2611.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:24 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\jline/jline/2.13/jline-2.13.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:24 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:24 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\com/typesafe/config/1.2.1/config-1.2.1.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:24 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:24 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:25 launcher main warn Couldn't get hash for org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar from http://files.minecraftforge.net/maven/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar.sha1: HTTP 404: Not Found 14:47:25 launcher main warn Couldn't get hash for org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar.sha1: HTTP 404: Not Found 14:47:25 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:25 launcher main warn Couldn't get hash for org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar.sha1: HTTP 404: Not Found 14:47:25 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:25 launcher main warn Couldn't get hash for org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar.sha1: HTTP 404: Not Found 14:47:25 launcher main warn Couldn't get hash for org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar from http://files.minecraftforge.net/maven/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar.sha1: HTTP 404: Not Found 14:47:25 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:25 launcher main warn Couldn't get hash for org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar.sha1: HTTP 404: Not Found 14:47:25 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:25 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:25 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:26 launcher main warn Couldn't get hash for org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar.sha1: HTTP 404: Not Found 14:47:26 launcher main warn Have local file C:/Users\Jewel\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar but don't know what size or hash it should be. Have to assume it's good. 14:47:27 launcher main info Checking installations. 14:47:27 launcher main info Minecraft client 1.12.2-forge1.12.2-14.23.2.2611 is ready to start. 14:47:27 launcher main info Starting! 14:47:31 launcher main warn Version does not support log configuration, will assume one plaintext entry per line 06:47:49 game   info 2018-02-11 14:47:49,423 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream 06:47:49 game   info 2018-02-11 14:47:49,548 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream 06:47:50 game   info [14:47:50] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker 06:47:51 game   info [14:47:51] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker 06:47:51 game   info [14:47:51] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker 06:47:51 game   info [14:47:51] [main/INFO] [FML]: Forge Mod Loader version 14.23.2.2611 for Minecraft 1.12.2 loading 06:47:51 game   info [14:47:51] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 8:amd64:6.2, installed at C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25 06:47:52 game   info [14:47:52] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in BetterGrassAndLeavesMod[v1.6.4.D].jar. This is not recommended, @Mods should be in a separate jar from the coremod. 06:47:52 game   info [14:47:52] [main/ERROR] [LaunchWrapper]: Unable to launch 06:47:52 game   info java.lang.RuntimeException: An error occurred trying to configure the Minecraft home at C:\Users\Jewel\AppData\Roaming\.minecraft for Forge Mod Loader 06:47:52 game   info at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:104) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:75) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:38) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:140) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?] 06:47:52 game   info at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?] 06:47:52 game   info Caused by: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin 06:47:52 game   info at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_25] 06:47:52 game   info at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader$1.run(URLClassLoader.java:367) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.8.0_25] 06:47:52 game   info at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_25] 06:47:52 game   info at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.Class.forName0(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.Class.forName(Class.java:344) ~[?:1.8.0_25] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:592) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:100) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info ... 5 more 06:47:52 game   info Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin 06:47:52 game   info at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_25] 06:47:52 game   info at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader$1.run(URLClassLoader.java:367) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.8.0_25] 06:47:52 game   info at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_25] 06:47:52 game   info at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.Class.forName0(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.Class.forName(Class.java:344) ~[?:1.8.0_25] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:592) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:100) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info ... 5 more 06:47:52 game   info Caused by: java.lang.NullPointerException 06:47:52 game   info at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_25] 06:47:52 game   info at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader$1.run(URLClassLoader.java:367) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.8.0_25] 06:47:52 game   info at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_25] 06:47:52 game   info at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.Class.forName0(Native Method) ~[?:1.8.0_25] 06:47:52 game   info at java.lang.Class.forName(Class.java:344) ~[?:1.8.0_25] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:592) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:100) ~[forge-1.12.2-14.23.2.2611.jar:?] 06:47:52 game   info ... 5 more 06:47:52 game   info Exception in thread "main" [14:47:52] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException 06:47:52 game   info [14:47:52] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49) 06:47:52 game   info [14:47:52] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.SecurityManager.checkExit(SecurityManager.java:761) 06:47:52 game   info [14:47:52] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Runtime.exit(Runtime.java:107) 06:47:52 game   info [14:47:52] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.System.exit(System.java:968) 06:47:52 game   info [14:47:52] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:138) 06:47:52 game   info [14:47:52] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

What can i remove or do to fix the crashing problem

Edited February 12, 2018 by diesieben07
spoiler

[larsgerrits]

You're using a mod designed for an older version for Minecraft (1.7.10 or older), while trying to run 1.12.2. That doesn't work, and you need to remove the mod.