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[revenger2111]

Hello everyone.

 

When playing the direwolf 20 1.7 pack my pc crashed for unknown reason and when i rebooted it and launched the pack again my world was gone. So i went to the saves folder and the file was still there. i went through the file but i didn't see anything wrong. when looking on the internet i didn't find any fix. the log said:

 

[20:08:14] [Client thread/ERROR]: Exception reading D:\ftb\direwolf20_17\minecraft\saves\new world city\level.dat
java.util.zip.ZipException: Not in GZIP format
at java.util.zip.GZIPInputStream.readHeader(Unknown Source) ~[?:1.8.0_31]
at java.util.zip.GZIPInputStream.<init>(Unknown Source) ~[?:1.8.0_31]
at java.util.zip.GZIPInputStream.<init>(Unknown Source) ~[?:1.8.0_31]
at net.minecraft.nbt.CompressedStreamTools.func_74796_a(CompressedStreamTools.java:29) ~[du.class:?]
at net.minecraft.world.storage.SaveFormatOld.func_75803_c(SourceFile:56) [ayr.class:?]
at net.minecraft.world.chunk.storage.AnvilSaveConverter.func_75799_b(SourceFile:45) [ayn.class:?]
at codechicken.nei.NEIClientConfig.reloadSaves(NEIClientConfig.java:529) [NEIClientConfig.class:?]
at codechicken.nei.ClientHandler.tickEvent(ClientHandler.java:155) [ClientHandler.class:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler_498_ClientHandler_tickEvent_ClientTickEvent.invoke(.dynamic) [?:?]
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) [ASMEventHandler.class:?]
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138) [EventBus.class:?]
at cpw.mods.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:325) [FMLCommonHandler.class:?]
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1576) [bao.class:?]
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962) [bao.class:?]
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887) [bao.class:?]
at net.minecraft.client.main.Main.main(SourceFile:148) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_31]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]

 

does anyone know how to fix this problem without losing my world?