Alveary Blocks Game Crash

As soon as one of these blocks comes up on the screen the game crashes. That includes NEI and Creative Mode, however if I install BuildCraft it does work.

Crash Error:

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 2/9/13 3:08 PM
Description: Rendering screen

java.lang.NoClassDefFoundError: buildcraft/core/utils/INBTTagable
    at binnie.core.machines.MachineManager.registerComponentClass(MachineManager.java:51)
    at binnie.core.machines.MachineManager.getComponentInterfaces(MachineManager.java:92)
    at binnie.core.machines.MachineComponent.getComponentInterfaces(MachineComponent.java:33)
    at binnie.core.machines.Machine.addComponent(Machine.java:59)
    at binnie.extrabees.apiary.AlvearyMutator$PackageAlvearyMutator.createMachine(AlvearyMutator.java:30)
    at binnie.core.machines.Machine.<init>(Machine.java:43)
    at binnie.core.machines.TileEntityMachine.setMachine(TileEntityMachine.java:34)
    at binnie.core.machines.TileEntityMachine.<init>(TileEntityMachine.java:29)
    at binnie.extrabees.apiary.TileExtraBeeAlveary.<init>(TileExtraBeeAlveary.java:30)
    at binnie.extrabees.apiary.AlvearyMachine$AlvearyPackage.createTileEntity(AlvearyMachine.java:18)
    at binnie.core.machines.BlockMachine.createNewTileEntity(BlockMachine.java:54)
    at amq.createTileEntity(Block.java:1673)
    at binnie.core.machines.RendererMachine.renderInvBlock(RendererMachine.java:32)
    at binnie.core.machines.RendererMachine.renderInventoryBlock(RendererMachine.java:41)
    at cpw.mods.fml.client.registry.RenderingRegistry.renderInventoryBlock(RenderingRegistry.java:149)
    at FMLRenderAccessLibrary.renderInventoryBlock(FMLRenderAccessLibrary.java:91)
    at bbb.a(RenderBlocks.java:7073)
    at bce.a(RenderItem.java:341)
    at bce.b(RenderItem.java:405)
    at codechicken.nei.forge.GuiContainerManager.drawItem(GuiContainerManager.java:369)
    at codechicken.nei.forge.GuiContainerManager.drawItem(GuiContainerManager.java:360)
    at codechicken.nei.SubSetRangeTag.draw(SubSetRangeTag.java:550)
    at codechicken.nei.SubSetRangeTag.draw(SubSetRangeTag.java:505)
    at codechicken.nei.DropDownFile.draw(DropDownFile.java:363)
    at codechicken.nei.DropDownWidget.draw(DropDownWidget.java:109)
    at codechicken.nei.LayoutManager.renderObjects(LayoutManager.java:221)
    at codechicken.nei.forge.GuiContainerManager.renderObjects(GuiContainerManager.java:514)
    at avf.a(GuiContainer.java:146)
    at ban.b(EntityRenderer.java:1004)
    at net.minecraft.client.Minecraft.J(Minecraft.java:882)
    at net.minecraft.client.Minecraft.run(Minecraft.java:771)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: buildcraft.core.utils.INBTTagable
    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:185)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 32 more
Caused by: java.lang.NullPointerException

Does this mean having build craft core is a requirement for extra bees? (I use TE as a replacement for BuildCraft)

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