So I updated Mystcraft becuase the current version I am using wont work anymore and got this error:
Minecraft has crashed!
----------------------
Minecraft has stopped running because it encountered a problem.
--- BEGIN ERROR REPORT f606feb3 --------
Generated 9/3/12 3:42 PM
Minecraft: Minecraft 1.2.5
OS: Windows 7 (x86) version 6.1
Java: 1.7.0_07, Oracle Corporation
VM: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: GeForce 6150SE nForce 430/PCI/SSE2 version 2.1.2, NVIDIA Corporation
java.lang.RuntimeException: RedPowerCore: BlockID 207 occupied by BlockLinkModifier, autoAssign is disabled.
at forge.MinecraftForge.killMinecraft(MinecraftForge.java:476)
at eloraam.core.Config.getBlockID(Config.java:114)
at RedPowerLogic.initialize(RedPowerLogic.java:152)
at WirelessRedstoneRedPower.initialize(WirelessRedstoneRedPower.java:44)
at mod_WirelessRedstoneRedPower.load(mod_WirelessRedstoneRedPower.java:11)
at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:351)
at cpw.mods.fml.common.Loader.modInit(Loader.java:263)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:604)
at cpw.mods.fml.client.FMLClientHandler.onLoadComplete(FMLClientHandler.java:203)
at net.minecraft.client.Minecraft.a(Minecraft.java:426)
at net.minecraft.client.Minecraft.run(Minecraft.java:735)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT eab4eaab ----------
Oh never mind, I think I found the problem, a Block ID is already taken
----------------------
Minecraft has stopped running because it encountered a problem.
--- BEGIN ERROR REPORT f606feb3 --------
Generated 9/3/12 3:42 PM
Minecraft: Minecraft 1.2.5
OS: Windows 7 (x86) version 6.1
Java: 1.7.0_07, Oracle Corporation
VM: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: GeForce 6150SE nForce 430/PCI/SSE2 version 2.1.2, NVIDIA Corporation
java.lang.RuntimeException: RedPowerCore: BlockID 207 occupied by BlockLinkModifier, autoAssign is disabled.
at forge.MinecraftForge.killMinecraft(MinecraftForge.java:476)
at eloraam.core.Config.getBlockID(Config.java:114)
at RedPowerLogic.initialize(RedPowerLogic.java:152)
at WirelessRedstoneRedPower.initialize(WirelessRedstoneRedPower.java:44)
at mod_WirelessRedstoneRedPower.load(mod_WirelessRedstoneRedPower.java:11)
at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:351)
at cpw.mods.fml.common.Loader.modInit(Loader.java:263)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:604)
at cpw.mods.fml.client.FMLClientHandler.onLoadComplete(FMLClientHandler.java:203)
at net.minecraft.client.Minecraft.a(Minecraft.java:426)
at net.minecraft.client.Minecraft.run(Minecraft.java:735)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT eab4eaab ----------
I just changed the block ID.