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[ SOLVED ] [1.15.2] java.lang.IllegalArgumentException: Cannot register a capability implementation multiple times


Novârch
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I'm trying to port a capability from 1.12 to 1.15 and keep getting this error, but I don't understand where I'm registering it twice.

Here are the capability classes:

Spoiler

public interface IStand
{
    void setStandID(final int p0);

    void setStandAct(final int p0);

    void setStandOn(final boolean p0);

    void setJojoPower(final int p0);

    void setPowerSpawned(final boolean p0);

    void setPlayerStandName(final String p0);

    int getStandID();

    int getStandAct();

    boolean getStandOn();

    int getJojoPower();

    boolean getPowerSpawned();

    String getPlayerStandName();

    void setStandRemoved();

    void cloneSaveFunction(final IStand p0);
}

 

Spoiler

public class IStandStorage implements IStorage<IStand>
{
	public INBT writeNBT(Capability<IStand> capability, IStand instance, Direction side)
	{
        CompoundNBT props = new CompoundNBT();
        props.putInt("standID", instance.getStandID());
        props.putInt("StandAct", instance.getStandAct());
        props.putBoolean("StandOn", instance.getStandOn());
        props.putBoolean("PowerOn", instance.getPowerSpawned());
        props.putInt("PowerID", instance.getJojoPower());
        return (INBT)props;
      }
      
      public void readNBT(Capability<IStand> capability, IStand instance, Direction side, INBT nbt)
      {
        CompoundNBT propertyData = (CompoundNBT)nbt;
        instance.setStandID(propertyData.getInt("standID"));
        instance.setStandAct(propertyData.getInt("StandAct"));
        instance.setStandOn(propertyData.getBoolean("StandOn"));
        instance.setPowerSpawned(propertyData.getBoolean("PowerOn"));
        instance.setJojoPower(propertyData.getInt("PowerID"));
      }
Spoiler


public class IStandCapability implements IStand
{
	private int playerStandID = 0;
	  
	  private int playerStandAct = 0;
	  
	  private boolean playerStandOn = false;
	  
	  private int playerStandExp = 0;
	  
	  private boolean playerPowerSpawned = false;
	  
	  private int playerJojoPower = 0;
	  
	  private String playerStandName = "";
	  
	  public void addStandExp(int value) {
	    this.playerStandExp += value;
	  }
	  
	  public void setStandID(int value) {
	    this.playerStandID = value;
	  }
	  
	  public void setStandExp(int value) {
	    this.playerStandExp = value;
	  }
	  
	  public void setStandAct(int value) {
	    this.playerStandAct = value;
	  }
	  
	  public void setStandOn(boolean value) {
	    this.playerStandOn = value;
	  }
	  
	  public void setJojoPower(int value) {
	    this.playerJojoPower = value;
	  }
	  
	  public void setPowerSpawned(boolean value) {
	    this.playerPowerSpawned = value;
	  }
	  
	  public void setPlayerStandName(String value) {
	    this.playerStandName = value;
	  }
	  
	  public int getStandID() {
	    return this.playerStandID;
	  }
	  
	  public int getStandExp() {
	    return this.playerStandExp;
	  }
	  
	  public int getStandAct() {
	    return this.playerStandAct;
	  }
	  
	  public boolean getStandOn() {
	    return this.playerStandOn;
	  }
	  
	  public int getJojoPower() {
	    return this.playerJojoPower;
	  }
	  
	  public boolean getPowerSpawned() {
	    return this.playerPowerSpawned;
	  }
	  
	  public String getPlayerStandName() {
	    return this.playerStandName;
	  }
	  
	  public void cloneSaveFunction(IStand props) {
	    setStandID(props.getStandID());
	    setStandAct(props.getStandAct());
	    setStandOn(props.getStandOn());
	    setJojoPower(props.getJojoPower());
	    setPowerSpawned(props.getPowerSpawned());
	    setPlayerStandName(props.getPlayerStandName());
	  }
	  
	  public void setStandRemoved() {
	    setStandOn(false);
	    setStandAct(0);
	    setStandExp(0);
	    setStandID(0);
	    setPlayerStandName("");
	  }
}
Spoiler

Registering the capability:




public static void registerCapabilities()
    {
    	CapabilityManager.INSTANCE.register(IStand.class, new IStandStorage(), IStandCapability::new);
        MinecraftForge.EVENT_BUS.register(new CapabilityHandler());
    }

 

 

 

 

It's sad how much time mods spend saying "x is no longer supported on this forum. Please update to a modern version of Minecraft to receive support".

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8 hours ago, Novârch said:

public static void registerCapabilities()

Where do you call this?

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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1 hour ago, Animefan8888 said:

Where do you call this?

FMLCommonSetupEvent

 

Edited by Novârch

It's sad how much time mods spend saying "x is no longer supported on this forum. Please update to a modern version of Minecraft to receive support".

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7 minutes ago, Novârch said:

FMLCommonSetupEvent

Show more of your code. Preferably as a git repo.

VANILLA MINECRAFT CLASSES ARE THE BEST RESOURCES WHEN MODDING

I will be posting 1.15.2 modding tutorials on this channel. If you want to be notified of it do the normal YouTube stuff like subscribing, ect.

Forge and vanilla BlockState generator.

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13 minutes ago, Animefan8888 said:

Show more of your code. Preferably as a git repo.

Heres the repo:

Switched it to ClientSetupEvent.

https://github.com/Novarch129/Jojomod-1.15.2

Theres a lot of commented out code due to this being a port of a 1.12.2 mod.

Edited by Novârch

It's sad how much time mods spend saying "x is no longer supported on this forum. Please update to a modern version of Minecraft to receive support".

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2 minutes ago, Novârch said:

Switched it to ClientSetupEvent.

That makes no sense.

Capabilities should be registered in FMLCommonSetupEvent.

 

The easiest way to find out where the two registrations come from is putting a breakpoint in CapabilityManager.register and looking at the call trace.

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  • Novârch changed the title to [ SOLVED ] [1.15.2] java.lang.IllegalArgumentException: Cannot register a capability implementation multiple times

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