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I can't figure out what I'm doing wrong. I used to have a server and I want to play this map on singpleplayer; I dragged the folder containing data, DIM1, playerdata, all that other jazz into my saves folder, but it crashes when I try to play. This is crash log

---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 6/30/15 3:06 PM
Description: Loading NBT data

java.util.zip.ZipException: invalid distance too far back
at java.util.zip.InflaterInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.DataInputStream.readFully(Unknown Source)
at java.io.DataInputStream.readFully(Unknown Source)
at net.minecraft.nbt.NBTTagByteArray.func_152446_a(SourceFile:29)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(SourceFile:380)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(SourceFile:48)
at net.minecraft.nbt.NBTTagList.func_152446_a(SourceFile:50)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(SourceFile:380)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(SourceFile:48)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(SourceFile:380)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(SourceFile:48)
at net.minecraft.nbt.CompressedStreamTools.func_152455_a(CompressedStreamTools.java:132)
at net.minecraft.nbt.CompressedStreamTools.func_152456_a(CompressedStreamTools.java:89)
at net.minecraft.nbt.CompressedStreamTools.func_74794_a(CompressedStreamTools.java:84)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadChunk__Async(AnvilChunkLoader.java:117)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:20)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:12)
at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:343)
at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302)
at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:117)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:92)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:302)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:112)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:126)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)
at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
at java.util.zip.InflaterInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.DataInputStream.readFully(Unknown Source)
at java.io.DataInputStream.readFully(Unknown Source)
at net.minecraft.nbt.NBTTagByteArray.func_152446_a(SourceFile:29)

-- NBT Tag --
Details:
Tag name: Blocks
Tag type: 7
Stacktrace:
at net.minecraft.nbt.NBTTagCompound.func_152449_a(SourceFile:380)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(SourceFile:48)
at net.minecraft.nbt.NBTTagList.func_152446_a(SourceFile:50)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(SourceFile:380)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(SourceFile:48)
at net.minecraft.nbt.NBTTagCompound.func_152449_a(SourceFile:380)
at net.minecraft.nbt.NBTTagCompound.func_152446_a(SourceFile:48)
at net.minecraft.nbt.CompressedStreamTools.func_152455_a(CompressedStreamTools.java:132)
at net.minecraft.nbt.CompressedStreamTools.func_152456_a(CompressedStreamTools.java:89)
at net.minecraft.nbt.CompressedStreamTools.func_74794_a(CompressedStreamTools.java:84)
at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadChunk__Async(AnvilChunkLoader.java:117)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:20)
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:12)
at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:343)
at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302)
at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12)
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:117)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:92)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:302)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:112)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:126)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.8
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_17, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 216264288 bytes (206 MB) / 408707072 bytes (389 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
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
FML: MCP v9.10 FML v8.0.14.1285 Minecraft Forge 11.14.0.1285 3 mods loaded, 3 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
FML{8.0.14.1285} [Forge Mod Loader] (forge-1.8-11.14.0.1285-1.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Forge{11.14.0.1285} [Minecraft Forge] (forge-1.8-11.14.0.1285-1.8.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'