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[SLOVED][1.12.2]Problem in item with inventory and gui


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I want create a item with gui, this gui will show inventory in this item.

I use 

public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable NBTTagCompound nbt) {
        return new ItemInventoryProvider(limit);

this to init capalities to my item, the "ItemInventoryProvider" Instantiation a ItemStackHandler in it's construct

public class ItemInventoryProvider implements ICapabilitySerializable<NBTTagCompound> {
    public final ItemStackHandler inventory;

    public ItemInventoryProvider(int size) {
        inventory = new ItemStackHandler(size);

    public boolean hasCapability(@Nonnull Capability<?> capability, @Nullable EnumFacing facing) {
        return capability == ITEM_HANDLER_CAPABILITY;

    public <T> T getCapability(@Nonnull Capability<T> capability, @Nullable EnumFacing facing) {
        return hasCapability(capability, facing) ? ITEM_HANDLER_CAPABILITY.<T>cast(inventory) : null;

    public NBTTagCompound serializeNBT() {
        return inventory.serializeNBT();

    public void deserializeNBT(NBTTagCompound nbt) {

But when i want create container for my item's gui i got some problem. method

addSlotToContainer(new Slot((IInventory) inventory, id, x, y));

need a IInventory to add slot, but i use IItemHandler in my item, what should i do?

Edited by tt36999
mark as sloved
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