---- Minecraft Crash Report ----
// Don't do that.
Time: 15-7-24 ??3:58
Description: Exception generating new chunk
java.lang.ClassCastException: danger.orespawn.BiomeGenUtopianPlains cannot be cast to com.assassincraft.original.dimension.ACBiomeGenDimensionOne
at com.assassincraft.original.dimension.ACChunkProvider.replaceBlocksForBiome(ACChunkProvider.java:202)
at com.assassincraft.original.dimension.ACChunkProvider.func_73154_d(ACChunkProvider.java:220)
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:172)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
at net.minecraft.world.World.func_72964_e(World.java:419)
at net.minecraft.world.World.func_147439_a(World.java:345)
at net.minecraft.world.World.func_147437_c(World.java:365)
at net.minecraft.world.World.func_147474_b(World.java:329)
at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:71)
at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:749)
at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:715)
at net.minecraft.world.World.<init>(World.java:260)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:97)
at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:14)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:65)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
at com.assassincraft.original.dimension.ACChunkProvider.replaceBlocksForBiome(ACChunkProvider.java:202)
at com.assassincraft.original.dimension.ACChunkProvider.func_73154_d(ACChunkProvider.java:220)
-- Chunk to be generated --
Details:
Location: 0,0
Position hash: 0
Generator: RandomLevelSource
Stacktrace:
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:172)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
at net.minecraft.world.World.func_72964_e(World.java:419)
-- Requested block coordinates --
Details:
Found chunk: true
Location: World: (0,64,0), Chunk: (at 0,4,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Stacktrace:
at net.minecraft.world.World.func_147439_a(World.java:345)
at net.minecraft.world.World.func_147437_c(World.java:365)
at net.minecraft.world.World.func_147474_b(World.java:329)
at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:71)
at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:749)
at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:715)
-- Affected level --
Details:
Level name: henry and andy
All players: 0 total; []
Chunk stats: ServerChunkCache: 0 Drop: 0
Level seed: 3566260071078127932
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 0 game time, 0 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.world.World.<init>(World.java:260)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:97)
at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:14)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:65)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
---- Minecraft Crash Report ----
// Don't do that.
Time: 15-7-24 ??3:58
Description: Exception generating new chunk
java.lang.ClassCastException: danger.orespawn.BiomeGenUtopianPlains cannot be cast to com.assassincraft.original.dimension.ACBiomeGenDimensionOne
at com.assassincraft.original.dimension.ACChunkProvider.replaceBlocksForBiome(ACChunkProvider.java:202)
at com.assassincraft.original.dimension.ACChunkProvider.func_73154_d(ACChunkProvider.java:220)
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:172)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
at net.minecraft.world.World.func_72964_e(World.java:419)
at net.minecraft.world.World.func_147439_a(World.java:345)
at net.minecraft.world.World.func_147437_c(World.java:365)
at net.minecraft.world.World.func_147474_b(World.java:329)
at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:71)
at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:749)
at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:715)
at net.minecraft.world.World.<init>(World.java:260)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:97)
at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:14)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:65)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
at com.assassincraft.original.dimension.ACChunkProvider.replaceBlocksForBiome(ACChunkProvider.java:202)
at com.assassincraft.original.dimension.ACChunkProvider.func_73154_d(ACChunkProvider.java:220)
-- Chunk to be generated --
Details:
Location: 0,0
Position hash: 0
Generator: RandomLevelSource
Stacktrace:
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:172)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
at net.minecraft.world.World.func_72964_e(World.java:419)
-- Requested block coordinates --
Details:
Found chunk: true
Location: World: (0,64,0), Chunk: (at 0,4,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Stacktrace:
at net.minecraft.world.World.func_147439_a(World.java:345)
at net.minecraft.world.World.func_147437_c(World.java:365)
at net.minecraft.world.World.func_147474_b(World.java:329)
at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:71)
at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:749)
at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:715)
-- Affected level --
Details:
Level name: henry and andy
All players: 0 total; []
Chunk stats: ServerChunkCache: 0 Drop: 0
Level seed: 3566260071078127932
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 0 game time, 0 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.world.World.<init>(World.java:260)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:97)
at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:14)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:65)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
crash report
---- Minecraft Crash Report ----
// Don't do that.
Time: 15-7-24 ??3:58
Description: Exception generating new chunk
java.lang.ClassCastException: danger.orespawn.BiomeGenUtopianPlains cannot be cast to com.assassincraft.original.dimension.ACBiomeGenDimensionOne
at com.assassincraft.original.dimension.ACChunkProvider.replaceBlocksForBiome(ACChunkProvider.java:202)
at com.assassincraft.original.dimension.ACChunkProvider.func_73154_d(ACChunkProvider.java:220)
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:172)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
at net.minecraft.world.World.func_72964_e(World.java:419)
at net.minecraft.world.World.func_147439_a(World.java:345)
at net.minecraft.world.World.func_147437_c(World.java:365)
at net.minecraft.world.World.func_147474_b(World.java:329)
at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:71)
at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:749)
at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:715)
at net.minecraft.world.World.<init>(World.java:260)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:97)
at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:14)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:65)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
at com.assassincraft.original.dimension.ACChunkProvider.replaceBlocksForBiome(ACChunkProvider.java:202)
at com.assassincraft.original.dimension.ACChunkProvider.func_73154_d(ACChunkProvider.java:220)
-- Chunk to be generated --
Details:
Location: 0,0
Position hash: 0
Generator: RandomLevelSource
Stacktrace:
at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:172)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
at net.minecraft.world.World.func_72964_e(World.java:419)
-- Requested block coordinates --
Details:
Found chunk: true
Location: World: (0,64,0), Chunk: (at 0,4,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Stacktrace:
at net.minecraft.world.World.func_147439_a(World.java:345)
at net.minecraft.world.World.func_147437_c(World.java:365)
at net.minecraft.world.World.func_147474_b(World.java:329)
at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:71)
at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:749)
at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:715)
-- Affected level --
Details:
Level name: henry and andy
All players: 0 total; []
Chunk stats: ServerChunkCache: 0 Drop: 0
Level seed: 3566260071078127932
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 0 game time, 0 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.world.World.<init>(World.java:260)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:97)
at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:14)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:65)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 164105440 bytes (156 MB) / 554283008 bytes (528 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 23, tcache: 78, allocated: 1, tallocated: 14
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1492 28 mods loaded, 28 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1492-1.7.10.jar)
UCHIJAA Forge{10.13.4.1492} [Minecraft Forge] (forge-1.7.10-10.13.4.1492-1.7.10.jar)
UCHIJAA Micdoodlecore{} [Micdoodle8 Core] (minecraft.jar)
UCHIJAA AssassinCraft{r129f} [AssassinCraft] (AssassinCraft-r129f-1.7.10.jar)
UCHIJAA Backpack{2.0.0} [Backpack] (Backpacks-Mod.jar)
UCHIJAA BiblioCraft{1.10.4} [BiblioCraft] (BiblioCraft[v1.10.4][MC1.7.10].jar)
UCHIJAA BuildCraft|Core{7.0.17} [BuildCraft] (buildcraft-7.0.17.jar)
UCHIJAA BuildCraft|Factory{7.0.17} [BC Factory] (buildcraft-7.0.17.jar)
UCHIJAA BuildCraft|Energy{7.0.17} [BC Energy] (buildcraft-7.0.17.jar)
UCHIJAA BuildCraft|Silicon{7.0.17} [BC Silicon] (buildcraft-7.0.17.jar)
UCHIJAA BuildCraft|Builders{7.0.17} [BC Builders] (buildcraft-7.0.17.jar)
UCHIJAA BuildCraft|Robotics{7.0.17} [BC Robotics] (buildcraft-7.0.17.jar)
UCHIJAA BuildCraft|Transport{7.0.17} [BC Transport] (buildcraft-7.0.17.jar)
UCHIJAA chocolateQuest{1.0} [Chocolate Quest] (chocolateQuest-1.7.10-1.0.jar)
UCHIJAA flansmod{4.9.0} [Flan's Mod] (Flans Mod-1.7.10-4.9.0.jar)
UCHIJAA GalacticraftCore{3.0.12} [Galacticraft Core] (GalacticraftCore-1.7-3.0.12.338.jar)
UCHIJAA GalacticraftMars{3.0.12} [Galacticraft Planets] (Galacticraft-Planets-1.7-3.0.12.338.jar)
UCHIJAA IGWMod{1.1.7-26} [In-Game wiki Mod] (IGW-Mod-1.7.10-1.1.7-26-universal.jar)
UCHIJAA mcheli{0.10.6} [MC Helicopter] (mcheli)
UCHIJAA cfm{3.4.7} [§9MrCrayfish's Furniture Mod] (MrCrayfishFurnitureModv3.4.7(1.7.10).jar)
UCHIJAA OreSpawn{1.7.10.20} [OreSpawn] (orespawn-1.7.10-20.0.zip)
UCHIJAA Paintball{1.7.10v1} [Paintball] (Paintball-1.7.10v1.jar)
UCHIJAA PneumaticCraft{1.9.10-98} [PneumaticCraft] (PneumaticCraft-1.7.10-1.9.10-98-universal.jar)
UCHIJAA RopesPlus{1.6.3} [Ropes+] (Ropes-Plus-Mod-1.7.10.jar)
UCHIJAA SlimevoidLib{2.0.4.7} [Slimevoid Library] (SlimevoidLibrary-2.0.4.7.jar)
UCHIJAA weaponmod{v1.14.3} [Balkon's WeaponMod] (weaponmod-1.14.3.jar)
UCHIJAA worldedit{6.0-beta-01} [WorldEdit] (worldedit-forge-mc1.7.10-6.0-beta-01.jar)
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 0 / 8; []
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'
It seems that the crash is caused by Assassin Craft. Try removing the mod.
And provide more detail in future posts. Specifically, when this happens and your dxdiag.
Before you even THINK about asking for crash help: Guide to fixing and avoiding crashes
thx