1.6.4 Crash

[FunkyPixie]

When I install the mod on forge 1.6.4 and then I run minecraft it crashes

heres the crash report

Time: 11/8/13 4:54 PM Description: There was a severe problem during mod loading that has caused the game to fail

cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: com.github.AbrarSyed.secretroomsmod.common.SecretRooms at cpw.mods.fml.common.LoadController.transition(LoadController.java:149) at cpw.mods.fml.common.Loader.loadMods(Loader.java:519) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:181) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:471) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:806) at net.minecraft.client.main.Main.main(SourceFile:101) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at net.minecraft.launchwrapper.Launch.launch(Launch.java:131) at net.minecraft.launchwrapper.Launch.main(Launch.java:27) Caused by: java.lang.ClassNotFoundException: com.github.AbrarSyed.secretroomsmod.common.SecretRooms at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:179) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at cpw.mods.fml.common.ModClassLoader.loadClass(ModClassLoader.java:58) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:249) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:457) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74) at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296) at com.google.common.eventbus.EventBus.post(EventBus.java:267) at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:194) at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74) at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296) at com.google.common.eventbus.EventBus.post(EventBus.java:267) at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:105) at cpw.mods.fml.common.Loader.loadMods(Loader.java:509) ... 10 more Caused by: java.lang.UnsupportedClassVersionError: com/github/AbrarSyed/secretroomsmod/common/SecretRooms : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:171) ... 38 more

A detailed walkthrough of the error, its code path and all known details is as follows:

-- System Details -- Details: Minecraft Version: 1.6.4 Operating System: Mac OS X (x86_64) version 10.6.8 Java Version: 1.6.0_65, Apple Inc. Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc. Memory: 30854608 bytes (29 MB) / 109563904 bytes (104 MB) up to 1069416448 bytes (1019 MB) JVM Flags: 1 total; -Xmx1G AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Suspicious classes: FML and Forge are installed IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP v8.11 FML v6.4.6.884 Minecraft Forge 9.11.0.884 22 mods loaded, 22 mods active mcp{8.09} Minecraft Coder Pack Unloaded->Constructed FML{6.4.6.884} Forge Mod Loader Unloaded->Constructed Forge{9.11.0.884} Minecraft Forge Unloaded->Constructed ComputerCraft{1.57} ComputerCraft Unloaded->Constructed CCTurtle{1.57} ComputerCraft Turtles Unloaded->Constructed BuildCraft|Core{4.1.2} BuildCraft Unloaded->Constructed BuildCraft|Builders{4.1.2} BC Builders Unloaded->Constructed BuildCraft|Energy{4.1.2} BC Energy Unloaded->Constructed BuildCraft|Factory{4.1.2} BC Factory Unloaded->Constructed Forestry{2.3.0.6} Forestry for Minecraft Unloaded->Constructed Railcraft{8.1.0.0} Railcraft Unloaded->Constructed secretroomsmod{4.6.2} The SecretRoomsMod Unloaded->Errored SecurityCraft{v1.4} [SecurityCraft](SecurityCraft v1.4pre for 1.6.4.zip) Unloaded->Constructed telepads{1.6.4 v5} [Teleportation Pads](TelePads 1.6.4 v5.zip) Unloaded->Constructed BuildCraft|Transport{4.1.2} BC Transport Unloaded->Constructed BuildCraft|Silicon{4.1.2} BC Silicon Unloaded->Constructed TelePipes{1.0.0} Teleport Pipes Unloaded->Constructed Thaumcraft{4.0.3a} Thaumcraft Unloaded->Constructed mod_ZanMinimap{0.9.4} Zan's Minimap Unloaded->Constructed BCTools{1.4-a-9} Buildcraft Tools Unloaded->Constructed QuantumCraft{1.02_mc164} qCraft Unloaded->Constructed TC{4.1.3_001} Traincraft Unloaded->Constructed

[sebi2306]

What version is it? Try using the recommended one

[AbrarSyed]

could not reproduce