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java.lang.NullPointerException: 	at gregtechmod.common.blocks.GT_BlockMetaID_Ore.m(GT_BlockMetaID_Ore.java:68)	at ic2.common.TileEntityMiner.canMine(TileEntityMiner.java:540)	at ic2.common.TileEntityMiner.aquireTarget(TileEntityMiner.java:418)	at ic2.common.TileEntityMiner.mine(TileEntityMiner.java:161)	at ic2.common.TileEntityMiner.g(TileEntityMiner.java:60)	at up.h(World.java:1814)	at gr.h(WorldServer.java:433)	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:644)	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:575)	at axv.p(IntegratedServer.java:105)	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:481)	at ep.run(SourceFile:539)