Hello All,

I got the following message when attempting to start up Open Blocks.

[04:04:18] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[04:04:19] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[04:04:19] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[04:04:19] [main/INFO] [FML]: Forge Mod Loader version 7.10.84.1217 for Minecraft 1.7.10 loading
[04:04:19] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.6.0_65, running on Mac OS X:x86_64:10.8.5, installed at /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
[04:04:19] [main/WARN] [FML]: The coremod codechicken.core.launch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:04:19] [main/INFO] [STDERR]: [codechicken.core.launch.DepLoader$DepLoadInst:checkExisting:436]: Warning: version of CodeChickenLib, 1.1.1.99 is newer than request 1.1.1.98
[04:04:19] [main/WARN] [FML]: The coremod codechicken.core.launch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:04:19] [main/WARN] [FML]: The coremod ic2.core.coremod.IC2core does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:04:19] [main/WARN] [FML]: The coremod invtweaks.forge.asm.FMLPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:04:19] [main/WARN] [FML]: The coremod mekanism.common.asm.LoadingHook does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:04:19] [main/WARN] [FML]: The coremod codechicken.nei.asm.NEICorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:461]: java.lang.NoSuchMethodError: cpw.mods.fml.common.FMLLog.getLogger()Ljava/util/logging/Logger;
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at openblocks.OpenBlocksCorePlugin.(OpenBlocksCorePlugin.java:17)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName0(Native Method)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName(Class.java:249)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:417)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:346)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:214)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[04:04:19] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at /Users/jessechong/Library/Application Support/minecraft for Forge Mod Loader
java.lang.NoSuchMethodError: cpw.mods.fml.common.FMLLog.getLogger()Ljava/util/logging/Logger;
at openblocks.OpenBlocksCorePlugin.(OpenBlocksCorePlugin.java:17) ~[OpenBlocks-1.2.8.jar:?]
at java.lang.Class.forName0(Native Method) ~[?:1.6.0_65]
at java.lang.Class.forName(Class.java:249) ~[?:1.6.0_65]
at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:417) ~[forge-1.7.10-10.13.1.1217.jar:?]
at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:346) ~[forge-1.7.10-10.13.1.1217.jar:?]
at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:214) ~[forge-1.7.10-10.13.1.1217.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.1.1217.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.7.10-10.13.1.1217.jar:?]
at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.7.10-10.13.1.1217.jar:?]
at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) [forge-1.7.10-10.13.1.1217.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
Exception in thread "main" [04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:461]: java.lang.NoSuchMethodError: cpw.mods.fml.common.FMLLog.getLogger()Ljava/util/logging/Logger;
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at openblocks.OpenBlocksCorePlugin.(OpenBlocksCorePlugin.java:17)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName0(Native Method)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at java.lang.Class.forName(Class.java:249)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:417)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:346)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:214)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[04:04:19] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:464]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Try forge 1208

#494