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Currently supported: All versions

Can't run forge on 1.12.2 single player

Tommy50377
in Support & Bug Reports

Featured Replies

Posted

Whenever i attempt to run 1.12.2 Forge from the Minecraft Launcher, it crashes and says "Game Crash: An unexpected issue has occurred and the game has crashed. We're sorry for the inconvenience." This happens with every version of forge I attempt to install. I've successfully downloaded it multiple times, and always run the version it is for before I try to launch Forge. At first i thought it was because there was no .jar file with the download, but I saw in multiple places that that was no longer an issue. I have no idea what i'm doing wrong. 

 

Logs

Spoiler

Debug:

[22:25:28] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[22:25:28] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[22:25:28] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[22:25:28] [main/DEBUG] [FML]: Injecting tracing printstreams for STDOUT/STDERR.
[22:25:28] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2814 for Minecraft 1.12.2 loading
[22:25:28] [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:\Users\Tom\Desktop\runtime\jre-x64
[22:25:28] [main/DEBUG] [FML]: Java classpath at launch is:
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.12.2-14.23.5.2814\forge-1.12.2-14.23.5.2814.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.12\launchwrapper-1.12.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\5.2\asm-all-5.2.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\jline\jline\3.5.1\jline-3.5.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\4.4.0\jna-4.4.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\typesafe\akka\akka-actor_2.11\2.3.3\akka-actor_2.11-2.3.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\typesafe\config\1.2.1\config-1.2.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-actors-migration_2.11\1.1.0\scala-actors-migration_2.11-1.1.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.11.1\scala-compiler-2.11.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\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
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\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
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.11.1\scala-library-2.11.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-parser-combinators_2.11\1.0.1\scala-parser-combinators_2.11-1.0.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-reflect\2.11.1\scala-reflect-2.11.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-swing_2.11\1.0.1\scala-swing_2.11-1.0.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-xml_2.11\1.0.2\scala-xml_2.11-1.0.2.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.3\jopt-simple-5.0.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.5.2\vecmath-1.5.2.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\apache\maven\maven-artifact\3.5.3\maven-artifact-3.5.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\mojang\patchy\1.1\patchy-1.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\4.4.0\jna-4.4.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.3\jopt-simple-5.0.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.1.9.Final\netty-all-4.1.9.Final.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\21.0\guava-21.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.5\commons-lang3-3.5.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.5\commons-io-2.5.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.10\commons-codec-1.10.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.8.0\gson-2.8.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.25\authlib-1.5.25.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.10.22\realms-1.10.22.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\it\unimi\dsi\fastutil\7.1.0\fastutil-7.1.0.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.8.1\log4j-api-2.8.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.8.1\log4j-core-2.8.1.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\libraries\com\mojang\text2speech\1.10.3\text2speech-1.10.3.jar
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Roaming\.minecraft\versions\1.12.2\1.12.2.jar
[22:25:28] [main/DEBUG] [FML]: Java library path at launch is:
[22:25:28] [main/DEBUG] [FML]:     C:\Users\Tom\AppData\Local\Temp\913c-d806-81d4-06b9
[22:25:28] [main/DEBUG] [FML]: Determined Minecraft Libraries Root: C:\Users\Tom\AppData\Roaming\.minecraft\libraries
[22:25:28] [main/DEBUG] [FML]: Cleaning up mods folder: C:\Users\Tom\AppData\Roaming\.minecraft\mods
[22:25:28] [main/DEBUG] [FML]: Examining file: NotEnoughItems-1.7.10-1.0.5.120-universal.jar
[22:25:28] [main/DEBUG] [FML]: Enabling runtime deobfuscation
[22:25:28] [main/DEBUG] [FML]: Instantiating coremod class FMLCorePlugin
[22:25:28] [main/DEBUG] [FML]: Found signing certificates for coremod FMLCorePlugin (net.minecraftforge.fml.relauncher.FMLCorePlugin)
[22:25:28] [main/DEBUG] [FML]: Found certificate e3c3d50c7c986df74c645c0ac54639741c90a557
[22:25:28] [main/DEBUG] [FML]: Added access transformer class net.minecraftforge.fml.common.asm.transformers.AccessTransformer to enqueued access transformers
[22:25:28] [main/DEBUG] [FML]: Enqueued coremod FMLCorePlugin
[22:25:28] [main/DEBUG] [FML]: Instantiating coremod class FMLForgePlugin
[22:25:28] [main/DEBUG] [FML]: Found signing certificates for coremod FMLForgePlugin (net.minecraftforge.classloading.FMLForgePlugin)
[22:25:28] [main/DEBUG] [FML]: Found certificate e3c3d50c7c986df74c645c0ac54639741c90a557
[22:25:28] [main/DEBUG] [FML]: Enqueued coremod FMLForgePlugin
[22:25:28] [main/DEBUG] [FML]: All fundamental core mods are successfully located
[22:25:28] [main/DEBUG] [FML]: Discovering coremods
[22:25:28] [main/INFO] [FML]: Searching C:\Users\Tom\AppData\Roaming\.minecraft\mods for mods
[22:25:28] [main/DEBUG] [FML]:   Adding NotEnoughItems-1.7.10-1.0.5.120-universal.jar to the mod list
[22:25:28] [main/DEBUG] [FML]: Examining for coremod candidacy NotEnoughItems-1.7.10-1.0.5.120-universal.jar
[22:25:28] [main/TRACE] [FML]: Adding NotEnoughItems-1.7.10-1.0.5.120-universal.jar to the list of known coremods, it will not be examined again
[22:25:28] [main/DEBUG] [FML]: Instantiating coremod class NEICorePlugin
[22:25:28] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.RuntimeException: An error occurred trying to configure the Minecraft home at C:\Users\Tom\AppData\Roaming\.minecraft for Forge Mod Loader
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:111) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:81) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:42) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:141) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_51]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_51]
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0_51]
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0_51]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_51]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0_51]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_51]
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_51]
    at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:527) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:451) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:265) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:107) ~[forge-1.12.2-14.23.5.2814.jar:?]
    ... 5 more
Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_51]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_51]
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0_51]
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0_51]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_51]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0_51]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_51]
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_51]
    at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:527) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:451) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:265) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:107) ~[forge-1.12.2-14.23.5.2814.jar:?]
    ... 5 more
Caused by: java.lang.NullPointerException
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_51]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_51]
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0_51]
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0_51]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_51]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0_51]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_51]
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_51]
    at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:527) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:451) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:265) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:107) ~[forge-1.12.2-14.23.5.2814.jar:?]
    ... 5 more
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.SecurityManager.checkExit(SecurityManager.java:761)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.Runtime.exit(Runtime.java:107)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.System.exit(System.java:971)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

 

 

Latest:

[22:25:28] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[22:25:28] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[22:25:28] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[22:25:28] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2814 for Minecraft 1.12.2 loading
[22:25:28] [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:\Users\Tom\Desktop\runtime\jre-x64
[22:25:28] [main/INFO] [FML]: Searching C:\Users\Tom\AppData\Roaming\.minecraft\mods for mods
[22:25:28] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.RuntimeException: An error occurred trying to configure the Minecraft home at C:\Users\Tom\AppData\Roaming\.minecraft for Forge Mod Loader
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:111) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:81) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:42) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:141) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_51]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_51]
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0_51]
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0_51]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_51]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0_51]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_51]
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_51]
    at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:527) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:451) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:265) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:107) ~[forge-1.12.2-14.23.5.2814.jar:?]
    ... 5 more
Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_51]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_51]
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0_51]
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0_51]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_51]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0_51]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_51]
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_51]
    at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:527) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:451) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:265) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:107) ~[forge-1.12.2-14.23.5.2814.jar:?]
    ... 5 more
Caused by: java.lang.NullPointerException
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_51]
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_51]
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_51]
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0_51]
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0_51]
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0_51]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_51]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0_51]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_51]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_51]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_51]
    at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_51]
    at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:527) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:451) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:265) ~[forge-1.12.2-14.23.5.2814.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:107) ~[forge-1.12.2-14.23.5.2814.jar:?]
    ... 5 more
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.SecurityManager.checkExit(SecurityManager.java:761)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.Runtime.exit(Runtime.java:107)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.System.exit(System.java:971)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[22:25:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

 

 

You are trying to run 1.12.2 with a very old coremod installedd

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

Spoiler

Logs (Most issues require logs to diagnose):

Spoiler

Please post logs using one of the following sites (Thank you Lumber Wizard for the list):

https://gist.github.com/: 100MB Requires member (Free)

https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)

https://hastebin.com/: 400KB

Do NOT use sites like Mediafire, Dropbox, OneDrive, Google Drive, or a site that has a countdown before offering downloads.

 

What to provide:

...for Crashes and Runtime issues:

Minecraft 1.14.4 and newer:

Post debug.log

Older versions:

Please update...

 

...for Installer Issues:

Post your installer log, found in the same place you ran the installer

This log will be called either installer.log or named the same as the installer but with .log on the end

Note for Windows users:

Windows hides file extensions by default so the installer may appear without the .jar extension then when the .log is added the log will appear with the .jar extension

 

Where to get it:

Mojang Launcher: When using the Mojang launcher debug.log is found in .minecraft\logs.

 

Curse/Overwolf: If you are using the Curse Launcher, their configurations break Forge's log settings, fortunately there is an easier workaround than I originally thought, this works even with Curse's installation of the Minecraft launcher as long as it is not launched THROUGH Twitch:

Spoiler
  1. Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
  2. Make a launcher profile targeting this version of Forge.
  3. Set the launcher profile's GameDir property to the pack's instance folder (not the instances folder, the folder that has the pack's name on it).
  4. Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.

Video:

Spoiler

 

 

 

or alternately, 

 

Fallback ("No logs are generated"):

If you don't see logs generated in the usual place, provide the launcher_log.txt from .minecraft

 

Server Not Starting:

Spoiler

If your server does not start or a command window appears and immediately goes away, run the jar manually and provide the output.

 

Reporting Illegal/Inappropriate Adfocus Ads:

Spoiler

Get a screenshot of the URL bar or copy/paste the whole URL into a thread on the General Discussion board with a description of the Ad.

Lex will need the Ad ID contained in that URL to report it to Adfocus' support team.

 

Posting your mod as a GitHub Repo:

Spoiler

When you have an issue with your mod the most helpful thing you can do when asking for help is to provide your code to those helping you. The most convenient way to do this is via GitHub or another source control hub.

When setting up a GitHub Repo it might seem easy to just upload everything, however this method has the potential for mistakes that could lead to trouble later on, it is recommended to use a Git client or to get comfortable with the Git command line. The following instructions will use the Git Command Line and as such they assume you already have it installed and that you have created a repository.

 

  1. Open a command prompt (CMD, Powershell, Terminal, etc).
  2. Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
  3. Run the following commands:
    1. git init
    2. git remote add origin [Your Repository's URL]
      • In the case of GitHub it should look like: https://GitHub.com/[Your Username]/[Repo Name].git
    3. git fetch
    4. git checkout --track origin/master
    5. git stage *
    6. git commit -m "[Your commit message]"
    7. git push
  4. Navigate to GitHub and you should now see most of the files.
    • note that it is intentional that some are not synced with GitHub and this is done with the (hidden) .gitignore file that Forge’s MDK has provided (hence the strictness on which folder git init is run from)
  5. Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]

 

28 minutes ago, Tommy50377 said:

I'm not using any mods right now

Your log clearly indicates that you are running the game with mods.

Some tips:

Spoiler

Modder Support:

Spoiler

1. Do not follow tutorials on YouTube, especially TechnoVision (previously called Loremaster) and HarryTalks, due to their promotion of bad practice and usage of outdated code.

2. Always post your code.

3. Never copy and paste code. You won't learn anything from doing that.

4. 

Quote

Programming via Eclipse's hotfixes will get you nowhere

5. Learn to use your IDE, especially the debugger.

6.

Quote

The "picture that's worth 1000 words" only works if there's an obvious problem or a freehand red circle around it.

Support & Bug Reports:

Spoiler

1. Read the EAQ before asking for help. Remember to provide the appropriate log(s).

2. Versions below 1.11 are no longer supported due to their age. Update to a modern version of Minecraft to receive support.

 

 

Keep in mind that unless you specifically set a launcher profile to use a separate working directory (where it will put the mods, logs, etc folders), it will use .minecraft which may have remnants from previous modded shenanigans.

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

Spoiler

Logs (Most issues require logs to diagnose):

Spoiler

Please post logs using one of the following sites (Thank you Lumber Wizard for the list):

https://gist.github.com/: 100MB Requires member (Free)

https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)

https://hastebin.com/: 400KB

Do NOT use sites like Mediafire, Dropbox, OneDrive, Google Drive, or a site that has a countdown before offering downloads.

 

What to provide:

...for Crashes and Runtime issues:

Minecraft 1.14.4 and newer:

Post debug.log

Older versions:

Please update...

 

...for Installer Issues:

Post your installer log, found in the same place you ran the installer

This log will be called either installer.log or named the same as the installer but with .log on the end

Note for Windows users:

Windows hides file extensions by default so the installer may appear without the .jar extension then when the .log is added the log will appear with the .jar extension

 

Where to get it:

Mojang Launcher: When using the Mojang launcher debug.log is found in .minecraft\logs.

 

Curse/Overwolf: If you are using the Curse Launcher, their configurations break Forge's log settings, fortunately there is an easier workaround than I originally thought, this works even with Curse's installation of the Minecraft launcher as long as it is not launched THROUGH Twitch:

Spoiler
  1. Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
  2. Make a launcher profile targeting this version of Forge.
  3. Set the launcher profile's GameDir property to the pack's instance folder (not the instances folder, the folder that has the pack's name on it).
  4. Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.

Video:

Spoiler

 

 

 

or alternately, 

 

Fallback ("No logs are generated"):

If you don't see logs generated in the usual place, provide the launcher_log.txt from .minecraft

 

Server Not Starting:

Spoiler

If your server does not start or a command window appears and immediately goes away, run the jar manually and provide the output.

 

Reporting Illegal/Inappropriate Adfocus Ads:

Spoiler

Get a screenshot of the URL bar or copy/paste the whole URL into a thread on the General Discussion board with a description of the Ad.

Lex will need the Ad ID contained in that URL to report it to Adfocus' support team.

 

Posting your mod as a GitHub Repo:

Spoiler

When you have an issue with your mod the most helpful thing you can do when asking for help is to provide your code to those helping you. The most convenient way to do this is via GitHub or another source control hub.

When setting up a GitHub Repo it might seem easy to just upload everything, however this method has the potential for mistakes that could lead to trouble later on, it is recommended to use a Git client or to get comfortable with the Git command line. The following instructions will use the Git Command Line and as such they assume you already have it installed and that you have created a repository.

 

  1. Open a command prompt (CMD, Powershell, Terminal, etc).
  2. Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
  3. Run the following commands:
    1. git init
    2. git remote add origin [Your Repository's URL]
      • In the case of GitHub it should look like: https://GitHub.com/[Your Username]/[Repo Name].git
    3. git fetch
    4. git checkout --track origin/master
    5. git stage *
    6. git commit -m "[Your commit message]"
    7. git push
  4. Navigate to GitHub and you should now see most of the files.
    • note that it is intentional that some are not synced with GitHub and this is done with the (hidden) .gitignore file that Forge’s MDK has provided (hence the strictness on which folder git init is run from)
  5. Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]

 

  • Author

I have played on modpacks downloaded from technic, but i've never run forge by itself before. I am trying to make my own modpack and want to test out how mods interact in single player, so I downloaded forge. I don't know why the logs would show mods appearing when I have nothing in my mods folder under .minecraft. I have mods downloaded in .technic. Could that be the source of the problem?
 

  • Author

Actually I'm completely wrong, i had not enough items in the mod folder under minecraft. I just deleted it and it works now. Thank you. Is there something i have to do to close this topic? I've never used this site before =p

  • 10 months later...

But if you can’t put mods in the folder cuz it crashes, how do you play with mods on 1.12.2 do you have to add the mods into the folder one at a time?

 

Guest
This topic is now closed to further replies.
https://forums.minecraftforge.net/topic/69507-cant-run-forge-on-1122-single-player/
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