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I installed some invidual mods of Technic Pack,and when I installed RedPower,Minecraft crashed and gave me this report:

---- Minecraft Crash Report ----
// Why is it breaking

Time: 12/19/12 7:25 PM
Description: Failed to start game

cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: eloraam/world/BlockCustomFlower
at cpw.mods.fml.common.LoadController.transition(LoadController.java:117)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:655)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:197)
at net.minecraft.client.Minecraft.a(Minecraft.java:469)
at net.minecraft.client.Minecraft.run(Minecraft.java:756)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: eloraam/world/BlockCustomFlower
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at thaumcraft.common.Config.initOreDictionary(Config.java:1959)
at thaumcraft.common.Thaumcraft.modsLoaded(Thaumcraft.java:119)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:440)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:83)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:654)
... 4 more
Caused by: java.lang.ClassNotFoundException: eloraam.world.BlockCustomFlower
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:141)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 33 more
Caused by: java.lang.NoClassDefFoundError: forge/ITextureProvider
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:134)
... 35 more
Caused by: java.lang.ClassNotFoundException: forge.ITextureProvider
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:141)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 39 more
Caused by: java.lang.NullPointerException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at net.minecraftforge.transformers.EventTransformer.transform(EventTransformer.java:29)
at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:178)
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:133)
... 41 more


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

-- System Details --
Details:
Minecraft Version: 1.4.5
Operating System: Windows XP (x86) version 5.1
Java Version: 1.7.0_05, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 396526288 bytes (378 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
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 v7.23 FML v4.5.17.479 Minecraft Forge 6.4.1.430 12 mods loaded, 12 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
mod_ReiMinimap [mod_ReiMinimap] ([1.4.5]ReiMinimap_v3.2_05.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Core [BuildCraft] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Builders [BC Builders] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Energy [BC Energy] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Factory [BC Factory] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Transport [BC Transport] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Silicon [BC Silicon] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
IC2 [IndustrialCraft 2] (Industrial-Craft-2-Mod.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Thaumcraft [Thaumcraft] (Thaumcraft3.0.1b.zip) Unloaded->Constructed->Pre-initialized->Initialized->Errored
LWJGL: 2.4.2
OpenGL: Intel Bear Lake B GL version 1.4.0 - Build 7.15.10.5218, Intel
Is Modded: Definitely; Client brand changed to 'forge,fml'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

Please help,I really look forward into playing this.

Minecraft Version: 1.4.5

Redpower 2 is NOT updated for 1.4.5 the latest is 1.2.5

Quote from stonematt15

Minecraft Version: 1.4.5

Redpower 2 is NOT updated for 1.4.5 the latest is 1.2.5

Well that sucks.There goes my sorting system.And the wired machines and stuff from RP2.