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Posted

Attempts to attach capabilities to the player but receives this error.

[10:27:23] [Server thread/ERROR] [ne.mi.ev.EventBus/EVENTBUS]: Exception caught during firing event: Cannot invoke "net.minecraftforge.common.util.LazyOptional.cast()" because "this.playerJoinedHandler" is null
	Index: 1
	Listeners:
		0: NORMAL
		1: ASM: class me.squander.backpack.event.AttachCapabilities onAttachCapabilities(Lnet/minecraftforge/event/AttachCapabilitiesEvent;)V
java.lang.NullPointerException: Cannot invoke "net.minecraftforge.common.util.LazyOptional.cast()" because "this.playerJoinedHandler" is null
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.world.entity.player.Player.getCapability(Player.java:2228)
	at TRANSFORMER/forge@40.1.68/net.minecraftforge.common.capabilities.ICapabilityProvider.getCapability(ICapabilityProvider.java:34)
	at TRANSFORMER/backpackmod@0.0NONE/me.squander.backpack.event.AttachCapabilities.onAttachCapabilities(AttachCapabilities.java:19)
	at net.minecraftforge.eventbus.ASMEventHandler_1_AttachCapabilities_onAttachCapabilities_AttachCapabilitiesEvent.invoke(.dynamic)
	at MC-BOOTSTRAP/eventbus@5.0.7/net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85)
	at MC-BOOTSTRAP/eventbus@5.0.7/net.minecraftforge.eventbus.EventBus.post(EventBus.java:302)
	at MC-BOOTSTRAP/eventbus@5.0.7/net.minecraftforge.eventbus.EventBus.post(EventBus.java:283)
	at TRANSFORMER/forge@40.1.68/net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:593)
	at TRANSFORMER/forge@40.1.68/net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:587)
	at TRANSFORMER/forge@40.1.68/net.minecraftforge.common.capabilities.CapabilityProvider.doGatherCapabilities(CapabilityProvider.java:73)
	at TRANSFORMER/forge@40.1.68/net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:68)
	at TRANSFORMER/forge@40.1.68/net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:52)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.world.entity.Entity.<init>(Entity.java:257)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.world.entity.LivingEntity.<init>(LivingEntity.java:234)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.world.entity.player.Player.<init>(Player.java:172)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.level.ServerPlayer.<init>(ServerPlayer.java:238)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.players.PlayerList.getPlayerForLogin(PlayerList.java:412)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.network.ServerLoginPacketListenerImpl.handleAcceptedLogin(ServerLoginPacketListenerImpl.java:124)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.network.ServerLoginPacketListenerImpl.tick(ServerLoginPacketListenerImpl.java:70)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.network.Connection.tick(Connection.java:267)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.network.ServerConnectionListener.tick(ServerConnectionListener.java:160)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:947)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:873)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.client.server.IntegratedServer.tickServer(IntegratedServer.java:90)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:704)
	at TRANSFORMER/minecraft@1.18.2/net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:262)
	at java.base/java.lang.Thread.run(Thread.java:833)

[10:27:23] [Server thread/ERROR] [minecraft/ServerLoginPacketListenerImpl]: Couldn't place player in world
java.lang.NullPointerException: Cannot invoke "net.minecraftforge.common.util.LazyOptional.cast()" because "this.playerJoinedHandler" is null
	at net.minecraft.world.entity.player.Player.getCapability(Player.java:2228) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraftforge.common.capabilities.ICapabilityProvider.getCapability(ICapabilityProvider.java:34) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
	at me.squander.backpack.event.AttachCapabilities.onAttachCapabilities(AttachCapabilities.java:19) ~[%2384!/:?] {re:classloading}
	at net.minecraftforge.eventbus.ASMEventHandler_1_AttachCapabilities_onAttachCapabilities_AttachCapabilitiesEvent.invoke(.dynamic) ~[?:?] {}
	at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-5.0.7.jar%2310!/:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-5.0.7.jar%2310!/:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-5.0.7.jar%2310!/:?] {}
	at net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:593) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
	at net.minecraftforge.event.ForgeEventFactory.gatherCapabilities(ForgeEventFactory.java:587) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
	at net.minecraftforge.common.capabilities.CapabilityProvider.doGatherCapabilities(CapabilityProvider.java:73) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
	at net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:68) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
	at net.minecraftforge.common.capabilities.CapabilityProvider.gatherCapabilities(CapabilityProvider.java:52) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2378%2385!/:?] {re:classloading}
	at net.minecraft.world.entity.Entity.<init>(Entity.java:257) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.world.entity.LivingEntity.<init>(LivingEntity.java:234) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading}
	at net.minecraft.world.entity.player.Player.<init>(Player.java:172) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.level.ServerPlayer.<init>(ServerPlayer.java:238) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.players.PlayerList.getPlayerForLogin(PlayerList.java:412) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading}
	at net.minecraft.server.network.ServerLoginPacketListenerImpl.handleAcceptedLogin(ServerLoginPacketListenerImpl.java:124) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.network.ServerLoginPacketListenerImpl.tick(ServerLoginPacketListenerImpl.java:70) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.network.Connection.tick(Connection.java:267) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading}
	at net.minecraft.server.network.ServerConnectionListener.tick(ServerConnectionListener.java:160) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading}
	at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:947) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:873) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.server.IntegratedServer.tickServer(IntegratedServer.java:90) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:704) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:262) ~[forge-1.18.2-40.1.68_mapped_parchment_2022.07.17-1.18.2-recomp.jar%2379!/:?] {re:classloading,pl:accesstransformer:B}
	at java.lang.Thread.run(Thread.java:833) [?:?] {}
[10:27:23] [Server thread/INFO] [minecraft/ServerLoginPacketListenerImpl]: com.mojang.authlib.GameProfile@5e18a6a7[id=380df991-f603-344c-a090-369bad2a924a,name=Dev,properties={},legacy=false] (local:E:d56832b6) lost connection: Invalid player data
[10:27:23] [Server thread/WARN] [minecraft/Connection]: handleDisconnection() called twice
@SubscribeEvent
    public static void onAttachCapabilities(AttachCapabilitiesEvent<Entity> event){
        if(event.getObject() instanceof Player){
            if(!event.getObject().getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY).isPresent()){
                event.addCapability(new ResourceLocation(BackpackMod.MODID, "extra_storage"), new ExtraStorageInventory(9));
            }
        }
    }

 

Posted
public class ExtraStorageInventory extends ItemStackHandler implements ICapabilityProvider {
    private final LazyOptional<IItemHandler> optional = LazyOptional.of(() -> this);

    public ExtraStorageInventory(int size){
        this.setSize(size);
    }

    @NotNull
    @Override
    public <T> LazyOptional<T> getCapability(@NotNull Capability<T> cap, @Nullable Direction side) {
        return cap == CapabilityItemHandler.ITEM_HANDLER_CAPABILITY ? optional.cast() : LazyOptional.empty();
    }
}

 

Posted

I did a new capability but still have items from the hotbar.

public static final Capability<IItemHandler> EXTRA_STORAGE = CapabilityManager.get(new CapabilityToken<>(){});
    private final LazyOptional<IItemHandler> optional = LazyOptional.of(() -> this);

    public ExtraStorageInventory(int size){
        this.setSize(size);
    }

    @NotNull
    @Override
    public <T> LazyOptional<T> getCapability(@NotNull Capability<T> cap, @Nullable Direction side) {
        return cap == EXTRA_STORAGE ? optional.cast() : LazyOptional.empty();
    }
player.getCapability(ExtraStorageInventory.EXTRA_STORAGE).ifPresent(handler -> {
                    NetworkHooks.openGui((ServerPlayer) player, new SimpleMenuProvider((id, inv, plr) ->
                            new ExtraStorageMenu(id, inv, handler), new TextComponent("EXTRA STORAGE")), buffer -> buffer.writeVarInt(9));
                });

 

Posted
public ExtraStorageMenu(int pContainerId, Inventory inventory, FriendlyByteBuf buffer) {
        this(pContainerId, inventory, new ItemStackHandler(buffer.readVarInt()));
    }

    public ExtraStorageMenu(int pContainerId, Inventory inventory, IItemHandler handler) {
        super(MenuTypeInit.EXTRA_STORAGE.get(), pContainerId);

        for(int i = 0; i < 9; ++i) {
            this.addSlot(new SlotItemHandler(handler, i, 1 + i * 18, 1));
        }

        this.addPlayerInventory(inventory);
        this.addPlayerHotbar(inventory);
    }

    private void addPlayerInventory(Inventory inventory){
        for(int i = 0; i < 3; ++i) {
            for(int j = 0; j < 9; ++j) {
                this.addSlot(new Slot(inventory, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
            }
        }
    }

    private void addPlayerHotbar(Inventory inventory){
        for(int k = 0; k < 9; ++k) {
            this.addSlot(new Slot(inventory, k, 8 + k * 18, 142));
        }
    }

 

Posted

You should get the IItemHandler on server and client from the Player whihc you can get from the given Inventory.

  On 8/9/2022 at 9:23 AM, Squander said:

I did a new capability but still have items from the hotbar.

Expand  

You have in the Slots of your IItemHandler the Items from the Hotbar right?

Please post a git repo of your Mod.

Posted

Can't finish GitHub sharing process
            Successfully created project 'Backpack1.18.2' on GitHub, but initial commit failed:
            gpg: skipped "Squander12 <devcodedred@gmail.com>": No secret key
            gpg: signing failed: No secret key
            gpg failed to sign the data
            failed to write commit object

I get this error all the time.

Posted

Use a git client, then you shouldn't have any problems. The recommended git client is GitHub Desktop.

I assume that your problem is your IDE has not the permission to commit to your Git repo.

Posted (edited)

Your git repo is missing the gradle folder is existential.

Please do not use the files upload use a git client as I have already told you.

Edited by Luis_ST
Posted

okay i run github desktop then file tab then add local repository i gave the path of my mod, all files are like loaded but i don't really know what to do now.

Posted

My config in my mod project

 

[core]
    repositoryformatversion = 0
    filemode = false
    bare = false
    logallrefupdates = true
    symlinks = false
    ignorecase = true
[remote "origin"]
    url = git@github.com:/Squander12/Backpack1.18.2.git
    fetch = +refs/heads/*:refs/remotes/origin/*
[remote "github"]
    url = git@github.com:/Squander12/Backpack_1.18.2.git
    fetch = +refs/heads/*:refs/remotes/github/*
[lfs]
    repositoryformatversion = 0
[remote "githubh"]
    url = git@github.com:/Squander12/Backpack_1.18.2.git
    fetch = +refs/heads/*:refs/remotes/githubh/*
[remote "githubasd"]
    url = git@github.com:/Squander12/Backpack1.18.2123.git
    fetch = +refs/heads/*:refs/remotes/githubasd/*
[remote "originn"]
    url = git@github.com:/Squander12/Backpack-1.18.2.git
    fetch = +refs/heads/*:refs/remotes/originn/*
[remote "githubheunyrty"]
    url = git@github.com:/Squander12/aaaa.git
    fetch = +refs/heads/*:refs/remotes/githubheunyrty/*
[commit]
    gpgsign = false

Posted
  On 8/9/2022 at 2:16 PM, Squander said:

okay i run github desktop then file tab then add local repository i gave the path of my mod, all files are like loaded but i don't really know what to do now.

Expand  

You need to create a public repo not a local, if you done this you need to publish the repo (Note make sure you uncheck "keep this repo private").
The publish it and post the like here.

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