I recently installed forge in minecraft, but it is constantly crashing. I am a noob, so I really can't interpret the crash log. Please help me :'(.
Java HotSpot 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
[19:09:27] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[19:09:27] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[19:09:27] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[19:09:27] [main/INFO] [FML]: Forge Mod Loader version 12.18.2.2118 for Minecraft 1.10.2 loading
[19:09:27] [main/INFO] [FML]: Java is Java HotSpot 64-Bit Server VM, version 1.8.0_74, running on Mac OS X:x86_64:10.11.6, installed at /System/Library/SystemFiles/047582.bundle/Minecraft (No Java).app/Contents/runtime/jre-x64/1.8.0_74
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.lang.ClassLoader.defineClass1(Native Method)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.security.AccessController.doPrivileged(Native Method)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.lang.Class.forName0(Native Method)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at java.lang.Class.forName(Class.java:348)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:552)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:423)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:253)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:79)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:41)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:138)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[19:09:27] [main/INFO] [sTDERR]: [net.minecraftforge.fml.relauncher.FMLLaunchHandler:setupHome:106]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:634]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:634]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:634]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:634]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:634]: ... 23 more
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:643]: Caused by: java.lang.NullPointerException
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:643]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:643]: ... 25 more
[19:09:27] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at /Users/JunsangLee/Library/Application Support/minecraft for Forge Mod Loader
java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_74]
at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_74]
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_74]
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0_74]
at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_74]
at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0_74]
at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0_74]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_74]
at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0_74]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_74]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_74]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_74]
at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:552) ~[forge-1.10.2-12.18.2.2118.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:423) ~[forge-1.10.2-12.18.2.2118.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:253) ~[forge-1.10.2-12.18.2.2118.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) [forge-1.10.2-12.18.2.2118.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:79) [forge-1.10.2-12.18.2.2118.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:41) [forge-1.10.2-12.18.2.2118.jar:?]
at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:138) [forge-1.10.2-12.18.2.2118.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.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_74]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74]
... 23 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_74]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74]
... 23 more
Exception in thread "main" [19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.ClassLoader.defineClass1(Native Method)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.security.AccessController.doPrivileged(Native Method)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Class.forName0(Native Method)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Class.forName(Class.java:348)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:552)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:423)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:253)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:79)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:41)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:138)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: ... 23 more
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:643]: Caused by: java.lang.NullPointerException
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:643]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[19:09:27] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:643]: ... 25 more