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Diameter

Server crashes upon startup after working fine for days.

Question

I made an infinite geothermal generator on my server using an energy condenser and piping.

Whenever I try to start it up, I get this error report.

012-03-02 20:30:01 [sEVERE] Unexpected exception

java.lang.NullPointerException

at net.minecraft.server.ItemStack.doMaterialsMatch(ItemStack.java:243)

at ee.TileCondenser.extractItem(TileCondenser.java:539)

at buildcraft.transport.pipes.PipeItemsWood.checkExtract(PipeItemsWood.java:111)

at buildcraft.transport.pipes.PipeItemsWood.doWork(PipeItemsWood.java:90)

at buildcraft.transport.TileGenericPipe.doWork(TileGenericPipe.java:159)

at buildcraft.api.PowerProvider.update(PowerProvider.java:52)

at buildcraft.transport.TileGenericPipe.l_(TileGenericPipe.java:108)

at net.minecraft.server.World.tickEntities(World.java:1182)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:534)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

I can tell it's a problem with the piping.

It's a small server I play with friends, so I don't have any good backups, and they'd be really annoyed if the world completely broke.

Is there any way I can make the world file work again?

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Are you able to recreate the issue, and provide the plan of it? We also had users with the same issue, where we had to WE out the pipes. Theyre pipes were from the 1.1.4 map, we havent had that issue yet in the 2.0 map so far. We have had other issue, but theyre not related

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I made an infinite geothermal generator on my server using an energy condenser and piping.

Whenever I try to start it up, I get this error report.

012-03-02 20:30:01 [sEVERE] Unexpected exception

java.lang.NullPointerException

at net.minecraft.server.ItemStack.doMaterialsMatch(ItemStack.java:243)

at ee.TileCondenser.extractItem(TileCondenser.java:539)

at buildcraft.transport.pipes.PipeItemsWood.checkExtract(PipeItemsWood.java:111)

at buildcraft.transport.pipes.PipeItemsWood.doWork(PipeItemsWood.java:90)

at buildcraft.transport.TileGenericPipe.doWork(TileGenericPipe.java:159)

at buildcraft.api.PowerProvider.update(PowerProvider.java:52)

at buildcraft.transport.TileGenericPipe.l_(TileGenericPipe.java:108)

at net.minecraft.server.World.tickEntities(World.java:1182)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:534)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)

I can tell it's a problem with the piping.

It's a small server I play with friends, so I don't have any good backups, and they'd be really annoyed if the world completely broke.

Is there any way I can make the world file work again?

Someone connected a wooden transport pipe (buildcraft) to a condenser (EE) which corrupts your map.

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that wooden pipe to a condenser problem seems to be intermittent, because ive done it on a 2.1.1 server with no problem. could it be which side you connect it to?

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