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So It keeps crashing when I load a world and it crashes with a problem of generating the terrain and the problem is the customspawner. It was working fine before, so please help as soon as possible.

Okie---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 4/19/14 6:48 PM
Description: Ticking screen

java.lang.RuntimeException: Unknown character '(' in 'C:/Users/Nathan/AppData/Roaming/.minecraft/config/CustomSpawner/overworld/Environment.cfg:1'
at drzhark.customspawner.configuration.CMSConfiguration.load(CMSConfiguration.java:536)
at drzhark.customspawner.configuration.CMSConfiguration.<init>(CMSConfiguration.java:94)
at drzhark.customspawner.environment.EnvironmentSettings.registerConfigs(EnvironmentSettings.java:115)
at drzhark.customspawner.environment.EnvironmentSettings.<init>(EnvironmentSettings.java:97)
at drzhark.customspawner.utils.CMSUtils.addWorldEnvironment(CMSUtils.java:106)
at drzhark.customspawner.EventHooks.onWorldLoad(EventHooks.java:175)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_43_EventHooks_onWorldLoad_Load.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122)
at net.minecraft.client.multiplayer.WorldClient.<init>(WorldClient.java:61)
at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:234)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:70)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:13)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:197)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:76)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1598)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:914)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:833)
at net.minecraft.client.main.Main.main(SourceFile:103)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


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

-- Head --
Stacktrace:
at drzhark.customspawner.configuration.CMSConfiguration.load(CMSConfiguration.java:536)
at drzhark.customspawner.configuration.CMSConfiguration.<init>(CMSConfiguration.java:94)
at drzhark.customspawner.environment.EnvironmentSettings.registerConfigs(EnvironmentSettings.java:115)
at drzhark.customspawner.environment.EnvironmentSettings.<init>(EnvironmentSettings.java:97)
at drzhark.customspawner.utils.CMSUtils.addWorldEnvironment(CMSUtils.java:106)
at drzhark.customspawner.EventHooks.onWorldLoad(EventHooks.java:175)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_43_EventHooks_onWorldLoad_Load.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122)
at net.minecraft.client.multiplayer.WorldClient.<init>(WorldClient.java:61)
at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:234)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:70)
at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:13)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:197)
at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(SourceFile:76)

-- Affected screen --
Details:
Screen name: net.minecraft.client.multiplayer.GuiConnecting
Stacktrace:
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1598)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:914)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:833)
at net.minecraft.client.main.Main.main(SourceFile:103)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 158971608 bytes (151 MB) / 295718912 bytes (282 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.01-pre FML v7.2.156.1057 Minecraft Forge 10.12.0.1057 14 mods loaded, 14 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
FML{7.2.156.1057} [Forge Mod Loader] (forge-1.7.2-10.12.0.1057.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Forge{10.12.0.1057} [Minecraft Forge] (forge-1.7.2-10.12.0.1057.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
TooManyItems{1.7.2} [TooManyItems] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
battlegear2{1.0.5.3} [Mine & Blade Battlegear 2 - Bullseye] (1.7.2-MB_Battlegear2-Bullseye-1.0.5.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
animalbikes{1.7.2} [Animal Bikes] (AnimalBikes_1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
AnimatedPlayer{1.4.1} [Animated Player Mod] (AnimatedPlayer-1.7.2-1.4.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
AnimationAPI{1.2.1} [AnimationAPI] (AnimationAPI-1.7.2-1.2.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
chatbubbles{1.7.2} [ChatBubbles] (ChatBubbles--.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
CustomSpawner{3.2.0.dev.R1} [DrZhark's CustomSpawner] (CustomMobSpawner 3.2.0-DEV-R2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
DragonMounts{r37} [Dragon Mounts] (dragonmount_r37_mc1.7.x.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
MoCreatures{6.2.0.dev.R1} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.2.0-DEV-R2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
HardcoreEnderExpansion{1.5} [Hardcore Ender Expansion] (HardcoreEnderExpansion.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
MutantCreatures{1.4.5} [Mutant Creatures] (MutantCreatures-1.7.2-1.4.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
Launched Version: 1.7.2-Forge10.12.0.1057
LWJGL: 2.9.0
OpenGL: AMD Radeon HD 6320 Graphics GL version 4.1.11013 Compatibility Profile Context, ATI Technologies Inc.
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: [TEAVSRP.zip]
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Anisotropic Filtering: Off (1)

Please, I rlly like this mod and I want to run it properly. It works when I take out the customspawner, but it prevents some of the mobs from spawning which is an issue. Please help as soon as possible because I don't want to wait days ):Heres some more details: It worked with the dual mod earlier, but than I was like "maybe it would run faster with a new version of forge for 1.7.2 so I got it and thats when it started, I think. I went back to the older version I had and it still didn't work like it didn't with the newer one.

The enviroment file?

I deleted the enviroment.cfg, and just got a new one and it still crashed when I loaded a world. Heres the crash report. ---- Minecraft Crash Report ----
// I just don't know what went wrong

Time: 4/20/14 12:31 PM
Description: Exception in server tick loop

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(Unknown Source)
at drzhark.customspawner.configuration.CMSConfiguration.load(CMSConfiguration.java:492)
at drzhark.customspawner.configuration.CMSConfiguration.<init>(CMSConfiguration.java:94)
at drzhark.customspawner.environment.EnvironmentSettings.registerEntity(EnvironmentSettings.java:418)
at drzhark.customspawner.environment.EnvironmentSettings.initializeEntities(EnvironmentSettings.java:271)
at drzhark.customspawner.utils.CMSUtils.addWorldEnvironment(CMSUtils.java:127)
at drzhark.customspawner.EventHooks.structureMapGen(EventHooks.java:196)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_42_EventHooks_structureMapGen_InitMapGenEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122)
at net.minecraftforge.event.terraingen.TerrainGen.getModdedMapGen(TerrainGen.java:29)
at net.minecraft.world.gen.ChunkProviderGenerate.<init>(ChunkProviderGenerate.java:66)
at net.minecraft.world.WorldType.getChunkGenerator(WorldType.java:149)
at net.minecraft.world.WorldProvider.func_76555_c(WorldProvider.java:66)
at net.minecraft.world.WorldServer.func_72970_h(WorldServer.java:665)
at net.minecraft.world.World.<init>(World.java:243)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:96)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:62)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:665)


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

-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 133749656 bytes (127 MB) / 269221888 bytes (256 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.01-pre FML v7.2.156.1057 Minecraft Forge 10.12.0.1057 14 mods loaded, 14 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
FML{7.2.156.1057} [Forge Mod Loader] (forge-1.7.2-10.12.0.1057.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Forge{10.12.0.1057} [Minecraft Forge] (forge-1.7.2-10.12.0.1057.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
TooManyItems{1.7.2} [TooManyItems] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
battlegear2{1.0.5.3} [Mine & Blade Battlegear 2 - Bullseye] (1.7.2-MB_Battlegear2-Bullseye-1.0.5.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
animalbikes{1.7.2} [Animal Bikes] (AnimalBikes_1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
AnimatedPlayer{1.4.1} [Animated Player Mod] (AnimatedPlayer-1.7.2-1.4.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
AnimationAPI{1.2.1} [AnimationAPI] (AnimationAPI-1.7.2-1.2.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
chatbubbles{1.7.2} [ChatBubbles] (ChatBubbles--.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
CustomSpawner{3.2.0.dev.R1} [DrZhark's CustomSpawner] (CustomMobSpawner 3.2.0-DEV-R2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
DragonMounts{r37} [Dragon Mounts] (dragonmount_r37_mc1.7.x.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
MoCreatures{6.2.0.dev.R1} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.2.0-DEV-R2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
HardcoreEnderExpansion{1.5} [Hardcore Ender Expansion] (HardcoreEnderExpansion.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
MutantCreatures{1.4.5} [Mutant Creatures] (MutantCreatures-1.7.2-1.4.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Profiler Position: N/A (disabled)
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'

Quote from EnderTheNinja

I deleted the enviroment.cfg, and just got a new one and it still crashed when I loaded a world. Heres the crash report. ---- Minecraft Crash Report ----
// I just don't know what went wrong

Time: 4/20/14 12:31 PM
Description: Exception in server tick loop

java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(Unknown Source)
at drzhark.customspawner.configuration.CMSConfiguration.load(CMSConfiguration.java:492)
at drzhark.customspawner.configuration.CMSConfiguration.<init>(CMSConfiguration.java:94)
at drzhark.customspawner.environment.EnvironmentSettings.registerEntity(EnvironmentSettings.java:418)
at drzhark.customspawner.environment.EnvironmentSettings.initializeEntities(EnvironmentSettings.java:271)
at drzhark.customspawner.utils.CMSUtils.addWorldEnvironment(CMSUtils.java:127)
at drzhark.customspawner.EventHooks.structureMapGen(EventHooks.java:196)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_42_EventHooks_structureMapGen_InitMapGenEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:51)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:122)
at net.minecraftforge.event.terraingen.TerrainGen.getModdedMapGen(TerrainGen.java:29)
at net.minecraft.world.gen.ChunkProviderGenerate.<init>(ChunkProviderGenerate.java:66)
at net.minecraft.world.WorldType.getChunkGenerator(WorldType.java:149)
at net.minecraft.world.WorldProvider.func_76555_c(WorldProvider.java:66)
at net.minecraft.world.WorldServer.func_72970_h(WorldServer.java:665)
at net.minecraft.world.World.<init>(World.java:243)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:96)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:62)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:665)


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

-- System Details --
Details:
Minecraft Version: 1.7.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot™ Client VM (mixed mode, sharing), Oracle Corporation
Memory: 133749656 bytes (127 MB) / 269221888 bytes (256 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.01-pre FML v7.2.156.1057 Minecraft Forge 10.12.0.1057 14 mods loaded, 14 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
FML{7.2.156.1057} [Forge Mod Loader] (forge-1.7.2-10.12.0.1057.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Forge{10.12.0.1057} [Minecraft Forge] (forge-1.7.2-10.12.0.1057.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
TooManyItems{1.7.2} [TooManyItems] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
battlegear2{1.0.5.3} [Mine & Blade Battlegear 2 - Bullseye] (1.7.2-MB_Battlegear2-Bullseye-1.0.5.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
animalbikes{1.7.2} [Animal Bikes] (AnimalBikes_1.7.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
AnimatedPlayer{1.4.1} [Animated Player Mod] (AnimatedPlayer-1.7.2-1.4.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
AnimationAPI{1.2.1} [AnimationAPI] (AnimationAPI-1.7.2-1.2.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
chatbubbles{1.7.2} [ChatBubbles] (ChatBubbles--.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
CustomSpawner{3.2.0.dev.R1} [DrZhark's CustomSpawner] (CustomMobSpawner 3.2.0-DEV-R2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
DragonMounts{r37} [Dragon Mounts] (dragonmount_r37_mc1.7.x.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
MoCreatures{6.2.0.dev.R1} [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v6.2.0-DEV-R2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
HardcoreEnderExpansion{1.5} [Hardcore Ender Expansion] (HardcoreEnderExpansion.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
MutantCreatures{1.4.5} [Mutant Creatures] (MutantCreatures-1.7.2-1.4.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Profiler Position: N/A (disabled)
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'