Voltz Launching Error

[Bernard_K]

I have a problem I downloaded the modpack on my macbook air and every time I try to launch it or any of the Technic packs it says Minecraft cannot launch it it's current configuration.

Here is the error log:

2013-06-23 20:28:03 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.7.4.520 for Minecraft 1.4.7 loading

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] All core mods are successfully located

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Discovering coremods

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Found a candidate coremod CodeChickenCore 0.7.1.0.jar

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Loading coremod CodeChickenCore 0.7.1.0.jar

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Loaded coremod CodeChickenCore 0.7.1.0.jar

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Found a candidate coremod NotEnoughItems 1.4.5.1.jar

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Loading coremod NotEnoughItems 1.4.5.1.jar

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Loaded coremod NotEnoughItems 1.4.5.1.jar

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Found library file argo-2.25.jar present and correct in lib dir

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Found library file guava-12.0.1.jar present and correct in lib dir

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Found library file asm-all-4.0.jar present and correct in lib dir

2013-06-23 20:28:03 [FINEST] [ForgeModLoader] Found library file bcprov-jdk15on-147.jar present and correct in lib dir

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Running coremod plugins

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin

2013-06-23 20:28:04 [iNFO] [ForgeModLoader] Found valid fingerprint for Minecraft Forge. Certificate fingerprint de4cf8a3f3bc15635810044c39240bf96804ea7d

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Coremod plugin FMLCorePlugin run successfully

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Running coremod plugin FMLForgePlugin

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Coremod plugin FMLForgePlugin run successfully

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Running coremod plugin CodeChickenCorePlugin

2013-06-23 20:28:04 [iNFO] [sTDOUT] Adding Accesstransformer map: codechickencore_at.cfg

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Coremod plugin CodeChickenCorePlugin run successfully

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Running coremod plugin NEICorePlugin

2013-06-23 20:28:04 [iNFO] [sTDOUT] Adding Accesstransformer map: nei_at.cfg

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Coremod plugin NEICorePlugin run successfully

2013-06-23 20:28:04 [FINEST] [ForgeModLoader] Validating minecraft

2013-06-23 20:28:04 [iNFO] [sTDOUT] A CRITICAL PROBLEM OCCURED INITIALIZING MINECRAFT - LIKELY YOU HAVE AN INCORRECT VERSION FOR THIS FML

2013-06-23 20:36:22 [iNFO] [sTDERR] java.lang.RuntimeException: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:175)

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:242)

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212)

2013-06-23 20:36:22 [iNFO] [sTDERR]at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)

2013-06-23 20:36:22 [iNFO] [sTDERR]at net.minecraft.Launcher.init(Launcher.java:127)

2013-06-23 20:36:22 [iNFO] [sTDERR]at org.spoutcraft.launcher.GameLauncher.runGame(GameLauncher.java:200)

2013-06-23 20:36:22 [iNFO] [sTDERR]at org.spoutcraft.launcher.GameUpdater.runGame(GameUpdater.java:81)

2013-06-23 20:36:22 [iNFO] [sTDERR]at org.spoutcraft.launcher.skin.LoginFrame.onEvent(LoginFrame.java:300)

2013-06-23 20:36:22 [iNFO] [sTDERR]at org.spoutcraft.launcher.skin.LoginWorker.doInBackground(LoginWorker.java:102)

2013-06-23 20:36:22 [iNFO] [sTDERR]at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source)

2013-06-23 20:36:22 [iNFO] [sTDERR]at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)

2013-06-23 20:36:22 [iNFO] [sTDERR]at java.util.concurrent.FutureTask.run(FutureTask.java:166)

2013-06-23 20:36:22 [iNFO] [sTDERR]at org.jdesktop.swingworker.SwingWorker.run(Unknown Source)

2013-06-23 20:36:22 [iNFO] [sTDERR]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

2013-06-23 20:36:22 [iNFO] [sTDERR]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

2013-06-23 20:36:22 [iNFO] [sTDERR]at java.lang.Thread.run(Thread.java:722)

2013-06-23 20:36:22 [iNFO] [sTDERR] Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:291)

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:155)

2013-06-23 20:36:22 [iNFO] [sTDERR]... 15 more

2013-06-23 20:36:22 [iNFO] [sTDERR] Caused by: java.lang.reflect.InvocationTargetException

2013-06-23 20:36:22 [iNFO] [sTDERR]at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

2013-06-23 20:36:22 [iNFO] [sTDERR]at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

2013-06-23 20:36:22 [iNFO] [sTDERR]at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

2013-06-23 20:36:22 [iNFO] [sTDERR]at java.lang.reflect.Method.invoke(Method.java:601)

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:283)

2013-06-23 20:36:22 [iNFO] [sTDERR]... 16 more

2013-06-23 20:36:22 [iNFO] [sTDERR] Caused by: java.lang.IllegalAccessError: tried to access class b from class cpw.mods.fml.common.Loader

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.common.Loader.<init>(Loader.java:172)

2013-06-23 20:36:22 [iNFO] [sTDERR]at cpw.mods.fml.common.Loader.instance(Loader.java:151)

2013-06-23 20:36:22 [iNFO] [sTDERR]... 21 more

2013-06-23 20:36:31 [iNFO] [sTDOUT] Exiting mod pack

Can someone please help me??