Casting a container to Gui Screen 1.8

[Aidas1000]

Hello everybody. I'm making a custom crafting table, but I get this error:

[18:52:53] [Client thread/FATAL] [FML]: Exception caught executing FutureTask: java.util.concurrent.ExecutionException: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
java.util.concurrent.ExecutionException: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_31]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_31]
at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:715) [FMLCommonHandler.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1077) [Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:376) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:117) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]
at GradleStart.main(Unknown Source) [start/:?]
Caused by: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
at net.minecraftforge.fml.client.FMLClientHandler.showGuiScreen(FMLClientHandler.java:478) ~[FMLClientHandler.class:?]
at net.minecraftforge.fml.common.FMLCommonHandler.showGuiScreen(FMLCommonHandler.java:344) ~[FMLCommonHandler.class:?]
at net.minecraftforge.fml.common.network.internal.FMLNetworkHandler.openGui(FMLNetworkHandler.java:103) ~[FMLNetworkHandler.class:?]
at net.minecraft.entity.player.EntityPlayer.openGui(EntityPlayer.java:2579) ~[EntityPlayer.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler.process(OpenGuiHandler.java:39) ~[OpenGuiHandler.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler.access$000(OpenGuiHandler.java:15) ~[OpenGuiHandler.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler$1.run(OpenGuiHandler.java:30) ~[OpenGuiHandler$1.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_31]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_31]
at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:714) ~[FMLCommonHandler.class:?]
... 15 more
[18:52:54] [Client thread/FATAL] [FML]: Exception caught executing FutureTask: java.util.concurrent.ExecutionException: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
java.util.concurrent.ExecutionException: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_31]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_31]
at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:715) [FMLCommonHandler.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1077) [Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:376) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:117) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]
at GradleStart.main(Unknown Source) [start/:?]
Caused by: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
at net.minecraftforge.fml.client.FMLClientHandler.showGuiScreen(FMLClientHandler.java:478) ~[FMLClientHandler.class:?]
at net.minecraftforge.fml.common.FMLCommonHandler.showGuiScreen(FMLCommonHandler.java:344) ~[FMLCommonHandler.class:?]
at net.minecraftforge.fml.common.network.internal.FMLNetworkHandler.openGui(FMLNetworkHandler.java:103) ~[FMLNetworkHandler.class:?]
at net.minecraft.entity.player.EntityPlayer.openGui(EntityPlayer.java:2579) ~[EntityPlayer.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler.process(OpenGuiHandler.java:39) ~[OpenGuiHandler.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler.access$000(OpenGuiHandler.java:15) ~[OpenGuiHandler.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler$1.run(OpenGuiHandler.java:30) ~[OpenGuiHandler$1.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_31]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_31]
at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:714) ~[FMLCommonHandler.class:?]
... 15 more
[18:52:54] [Client thread/FATAL] [FML]: Exception caught executing FutureTask: java.util.concurrent.ExecutionException: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
java.util.concurrent.ExecutionException: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_31]
at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_31]
at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:715) [FMLCommonHandler.class:?]
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1077) [Minecraft.class:?]
at net.minecraft.client.Minecraft.run(Minecraft.java:376) [Minecraft.class:?]
at net.minecraft.client.main.Main.main(Main.java:117) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]
at GradleStart.main(Unknown Source) [start/:?]
Caused by: java.lang.ClassCastException: aidas.morestuff.guicontainer.BigContainer cannot be cast to net.minecraft.client.gui.GuiScreen
at net.minecraftforge.fml.client.FMLClientHandler.showGuiScreen(FMLClientHandler.java:478) ~[FMLClientHandler.class:?]
at net.minecraftforge.fml.common.FMLCommonHandler.showGuiScreen(FMLCommonHandler.java:344) ~[FMLCommonHandler.class:?]
at net.minecraftforge.fml.common.network.internal.FMLNetworkHandler.openGui(FMLNetworkHandler.java:103) ~[FMLNetworkHandler.class:?]
at net.minecraft.entity.player.EntityPlayer.openGui(EntityPlayer.java:2579) ~[EntityPlayer.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler.process(OpenGuiHandler.java:39) ~[OpenGuiHandler.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler.access$000(OpenGuiHandler.java:15) ~[OpenGuiHandler.class:?]
at net.minecraftforge.fml.common.network.internal.OpenGuiHandler$1.run(OpenGuiHandler.java:30) ~[OpenGuiHandler$1.class:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_31]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_31]
at net.minecraftforge.fml.common.FMLCommonHandler.callFuture(FMLCommonHandler.java:714) ~[FMLCommonHandler.class:?]
... 15 more

My block class:

package aidas.morestuff.blocks;

import aidas.morestuff.Main;
import aidas.morestuff.items.MItems;
import aidas.morestuff.network.MGuiHandler;
import net.minecraft.block.Block;
import net.minecraft.block.BlockWorkbench;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.ContainerWorkbench;
import net.minecraft.util.BlockPos;
import net.minecraft.util.ChatComponentTranslation;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.IChatComponent;
import net.minecraft.world.IInteractionObject;
import net.minecraft.world.World;

public class BigWorkbench extends Block
{
    protected BigWorkbench(String uName)
    {
        super(Material.wood);
        this.setCreativeTab(MItems.tabMS);
        this.setUnlocalizedName(uName);
    }
    
    @Override
    public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumFacing side, float hitX, float hitY, float hitZ)
    {
        if (!worldIn.isRemote)
        {
        	playerIn.openGui(Main.instance, MGuiHandler.BIG_GUI, worldIn, pos.getX(), pos.getY(), pos.getZ());
        }
        return true;
    }
}

The MGuiHandler code:

package aidas.morestuff.network;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.network.IGuiHandler;
import aidas.morestuff.client.gui.CabinGui;
import aidas.morestuff.guicontainer.BigContainer;
import aidas.morestuff.guicontainer.ContainerCabin;
import aidas.morestuff.tileentity.CabinTileEntity;

public class MGuiHandler implements IGuiHandler
{
public static final int CABIN_GUI = 0;
public static final int BIG_GUI = 1;

@Override
public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z)
{
    if (ID == CABIN_GUI)
        return new ContainerCabin(player.inventory, (CabinTileEntity) world.getTileEntity(new BlockPos(x, y, z)));
    else if(ID == BIG_GUI)
    	return new BigContainer(player.inventory, world, new BlockPos(x, y, z));
	return null;
}

@Override
public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z)
{
    if (ID == CABIN_GUI)
        return new CabinGui(new ContainerCabin(player.inventory, (CabinTileEntity) world.getTileEntity(new BlockPos(x, y, z))));
    else if(ID == BIG_GUI)
    	return new BigContainer(player.inventory, world, new BlockPos(x, y, z));
	return null;
}

}

BigContainer:

package aidas.morestuff.guicontainer;

import aidas.morestuff.blocks.MBlocks;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.InventoryCraftResult;
import net.minecraft.inventory.InventoryCrafting;
import net.minecraft.inventory.Slot;
import net.minecraft.inventory.SlotCrafting;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.CraftingManager;
import net.minecraft.util.BlockPos;
import net.minecraft.world.World;

public class BigContainer extends Container
{
    /** The crafting matrix inventory (4x4). */
    public InventoryCrafting craftMatrix = new InventoryCrafting(this, 4, 4);
    public IInventory craftResult = new InventoryCraftResult();
    private World worldObj;
    private BlockPos field_178145_h;
    private static final String __OBFID = "CL_00001744";

    public BigContainer(InventoryPlayer playerInventory, World worldIn, BlockPos p_i45800_3_)
    {
        this.worldObj = worldIn;
        this.field_178145_h = p_i45800_3_;
        this.addSlotToContainer(new SlotCrafting(playerInventory.player, this.craftMatrix, this.craftResult, 0, 124, 35));
        int i;
        int j;
        
        int counter = 0;
        for (i = 0; i < 4; ++i)
        {
            for (j = 0; j < 4; ++j)
            {
                this.addSlotToContainer(new Slot(this.craftMatrix, counter, 30 + j * 18, 17 + i * 18));
            }
        }

        for (i = 0; i < 3; ++i)
        {
            for (j = 0; j < 9; ++j)
            {
                this.addSlotToContainer(new Slot(playerInventory, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
            }
        }

        for (i = 0; i < 9; ++i)
        {
            this.addSlotToContainer(new Slot(playerInventory, i, 8 + i * 18, 142));
        }

        this.onCraftMatrixChanged(this.craftMatrix);
    }

    /**
     * Callback for when the crafting matrix is changed.
     */
    public void onCraftMatrixChanged(IInventory inventoryIn)
    {
        this.craftResult.setInventorySlotContents(0, CraftingManager.getInstance().findMatchingRecipe(this.craftMatrix, this.worldObj));
    }

    /**
     * Called when the container is closed.
     */
    public void onContainerClosed(EntityPlayer playerIn)
    {
        super.onContainerClosed(playerIn);

        if (!this.worldObj.isRemote)
        {
            for (int i = 0; i < 16; ++i)
            {
                ItemStack itemstack = this.craftMatrix.getStackInSlotOnClosing(i);

                if (itemstack != null)
                {
                    playerIn.dropPlayerItemWithRandomChoice(itemstack, false);
                }
            }
        }
    }

    public boolean canInteractWith(EntityPlayer playerIn)
    {
        return this.worldObj.getBlockState(this.field_178145_h).getBlock() != MBlocks.big_workbench ? false : playerIn.getDistanceSq((double)this.field_178145_h.getX() + 0.5D, (double)this.field_178145_h.getY() + 0.5D, (double)this.field_178145_h.getZ() + 0.5D) <= 64.0D;
    }

    /**
     * Take a stack from the specified inventory slot.
     */
    public ItemStack transferStackInSlot(EntityPlayer playerIn, int index)
    {
        ItemStack itemstack = null;
        Slot slot = (Slot)this.inventorySlots.get(index);

        if (slot != null && slot.getHasStack())
        {
            ItemStack itemstack1 = slot.getStack();
            itemstack = itemstack1.copy();

            if (index == 0)
            {
                if (!this.mergeItemStack(itemstack1, 10, 46, true))
                {
                    return null;
                }

                slot.onSlotChange(itemstack1, itemstack);
            }
            else if (index >= 10 && index < 37)
            {
                if (!this.mergeItemStack(itemstack1, 37, 46, false))
                {
                    return null;
                }
            }
            else if (index >= 37 && index < 46)
            {
                if (!this.mergeItemStack(itemstack1, 10, 37, false))
                {
                    return null;
                }
            }
            else if (!this.mergeItemStack(itemstack1, 10, 46, false))
            {
                return null;
            }

            if (itemstack1.stackSize == 0)
            {
                slot.putStack((ItemStack)null);
            }
            else
            {
                slot.onSlotChanged();
            }

            if (itemstack1.stackSize == itemstack.stackSize)
            {
                return null;
            }

            slot.onPickupFromSlot(playerIn, itemstack1);
        }

        return itemstack;
    }

    /**
     * Called to determine if the current slot is valid for the stack merging (double-click) code. The stack passed in
     * is null for the initial slot that was double-clicked.
     */
    public boolean canMergeSlot(ItemStack p_94530_1_, Slot p_94530_2_)
    {
        return p_94530_2_.inventory != this.craftResult && super.canMergeSlot(p_94530_1_, p_94530_2_);
    }
}

BigGui:

package aidas.morestuff.client.gui;

import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.resources.I18n;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.util.BlockPos;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import aidas.morestuff.guicontainer.BigContainer;

@SideOnly(Side.CLIENT)
public class BigGui extends GuiContainer
{
    private static final ResourceLocation craftingTableGuiTextures = new ResourceLocation("ms:textures/gui/container/big.png");
    
    public BigGui(InventoryPlayer playerInv, World worldIn)
    {
        this(playerInv, worldIn, BlockPos.ORIGIN);
    }

    public BigGui(InventoryPlayer playerInv, World worldIn, BlockPos blockPosition)
    {
        super(new BigContainer(playerInv, worldIn, blockPosition));
    }

    /**
     * Draw the foreground layer for the GuiContainer (everything in front of the items). Args : mouseX, mouseY
     */
    protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY)
    {
        this.fontRendererObj.drawString(I18n.format("container.crafting", new Object[0]), 28, 6, 4210752);
        this.fontRendererObj.drawString(I18n.format("container.inventory", new Object[0]), 8, this.ySize - 96 + 2, 4210752);
    }

    /**
     * Args : renderPartialTicks, mouseX, mouseY
     */
    protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY)
    {
        GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
        this.mc.getTextureManager().bindTexture(craftingTableGuiTextures);
        int k = (this.width - this.xSize) / 2;
        int l = (this.height - this.ySize) / 2;
        this.drawTexturedModalRect(k, l, 0, 0, this.xSize, this.ySize);
    }
}

I have followed this tutorial (I understand German)

, but I still can't fix it . Sorry if this question is dumb. I am kinda new to modding.

[Aidas1000]

getClientGuiElement must return a GuiScreen.

Thank you. That worked. If I had not have skipped the gui handler part, I wouldn't post this.