[Bug] IC 1.64 Pump+Compressor+overlocker upgrade = crash.

    Hello!

    If u do this




    Game exit for Single Player game.

    For multiplayer - server going down.

    How to fix this problem for Multiplayer? If server up and i login, server going down..

    Help please :)

    server log

    2012-02-02 11:29:36 [SEVERE] Unexpected exception
    java.lang.NullPointerException
    at net.minecraft.server.ItemStack.doMaterialsMatch(ItemStack.java:243)
    at ic2.api.Ic2Recipes.getOutputFor(Ic2Recipes.java:125)
    at ic2.api.Ic2Recipes.getCompressorOutputFor(Ic2Recipes.java:71)
    at ic2.common.TileEntityCompressor.getResultFor(TileEntityCompressor.java:34)
    at ic2.common.TileEntityCompressor.operate(TileEntityCompressor.java:55)
    at ic2.common.TileEntityElectricMachine.l_(TileEntityElectricMachine.java:86)
    at net.minecraft.server.World.tickEntities(World.java:1178)
    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)

    Depending on Richards work-schedule there could be Bugfix-Release soon (since he does a lot of work, since most of the developers are out for exams I guess). I guess they wait til they manage to fix some of the SMP-errors and increase this minor-errors.