Search Unity

  1. Welcome to the Unity Forums! Please take the time to read our Code of Conduct to familiarize yourself with the forum rules and how to post constructively.
  2. Unite 2023 Registrations are now LIVE! We are thrilled to announce that Unite 2023 Registration is now live and open for all!
    Dismiss Notice
New Forum User Notice Unite 2023 Registrations are now LIVE!

Question OverflowException: Reading past the end of the buffer with Network Variables

Discussion in 'Game Server Hosting' started by burgerandfries43, May 23, 2023.

  1. burgerandfries43

    burgerandfries43

    Joined:
    Jan 23, 2021
    Posts:
    8
    Hello,

    I have been attempting to make a damage system using Network Variables but I keep running into this issue whenever they are spawned. OverflowException: Reading past the end of the buffer. It only happens when the Network Variable is in the scene and just when it is serialized.
    Code (CSharp):
    1. using System.Collections;
    2. using System.Collections.Generic;
    3. using UnityEngine;
    4. using Unity.Netcode;
    5. using System;
    6.  
    7. public class PlayerHealth : NetworkBehaviour
    8. {
    9.     public NetworkVariable<float> playerHealth;
    10.  
    11.     public override void OnNetworkSpawn()
    12.     {
    13.         playerHealth = new NetworkVariable<float>(100,
    14.         NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Server);
    15.     }
    16.  
    17.     [ServerRpc(RequireOwnership = false)]
    18.     public void DoDamageServerRpc(float damage)
    19.     {
    20.         Debug.Log("Did " + damage + " damage");
    21.         playerHealth.Value -= damage;
    22.     }
    23. }
    This is the script it is in and it is on Multiplay Servers. Here is the full error message

    OverflowException: Reading past the end of the buffer
    Unity.Netcode.SceneEventData.DeserializeDespawnedInScenePlacedNetworkObjects () (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/SceneManagement/SceneEventData.cs:852)
    Unity.Netcode.SceneEventData.SynchronizeSceneNetworkObjects (Unity.Netcode.NetworkManager networkManager) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/SceneManagement/SceneEventData.cs:890)
    Unity.Netcode.NetworkSceneManager.HandleClientSceneEvent (System.UInt32 sceneEventId) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/SceneManagement/NetworkSceneManager.cs:1781)
    Unity.Netcode.NetworkSceneManager.ClientLoadedSynchronization (System.UInt32 sceneEventId) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/SceneManagement/NetworkSceneManager.cs:1747)
    Unity.Netcode.NetworkSceneManager.OnClientBeginSync (System.UInt32 sceneEventId) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/SceneManagement/NetworkSceneManager.cs:1676)
    Unity.Netcode.NetworkSceneManager.HandleClientSceneEvent (System.UInt32 sceneEventId) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/SceneManagement/NetworkSceneManager.cs:1774)
    Unity.Netcode.NetworkSceneManager.HandleSceneEvent (System.UInt64 clientId, Unity.Netcode.FastBufferReader reader) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/SceneManagement/NetworkSceneManager.cs:1961)
    Unity.Netcode.SceneEventMessage.Handle (Unity.Netcode.NetworkContext& context) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Messaging/Messages/SceneEventMessage.cs:26)
    Unity.Netcode.MessagingSystem.ReceiveMessage[T] (Unity.Netcode.FastBufferReader reader, Unity.Netcode.NetworkContext& context, Unity.Netcode.MessagingSystem system) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Messaging/MessagingSystem.cs:511)
    Unity.Netcode.MessagingSystem.HandleMessage (Unity.Netcode.MessageHeader& header, Unity.Netcode.FastBufferReader reader, System.UInt64 senderId, System.Single timestamp, System.Int32 serializedHeaderSize) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Messaging/MessagingSystem.cs:384)
    UnityEngine.Debug:LogException(Exception)
    Unity.Netcode.MessagingSystem:HandleMessage(MessageHeader&, FastBufferReader, UInt64, Single, Int32) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Messaging/MessagingSystem.cs:388)
    Unity.Netcode.MessagingSystem:processIncomingMessageQueue() (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Messaging/MessagingSystem.cs:404)
    Unity.Netcode.NetworkManager:OnNetworkEarlyUpdate() (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Core/NetworkManager.cs:1600)
    Unity.Netcode.NetworkManager:NetworkUpdate(NetworkUpdateStage) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Core/NetworkManager.cs:1532)
    Unity.Netcode.NetworkUpdateLoop:RunNetworkUpdateStage(NetworkUpdateStage) (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Core/NetworkUpdateLoop.cs:185)
    Unity.Netcode.<>c:<CreateLoopSystem>b__0_0() (at ./Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Core/NetworkUpdateLoop.cs:208)

    Thank You
     
    burgerandfries43, May 23, 2023
    #1