解析完成前遇到流结束

Question

我试图保存和加载游戏，但收到此错误：

SerializationException: End of Stream 在解析之前遇到 完全的。 System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run() （在：0） System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize （System.Runtime.Remoting.Messaging.HeaderHandler 处理程序， System.Runtime.Serialization.Formatters.Binary.__BinaryParser serParser, System.Boolean fCheck, System.Boolean isCrossAppDomain, System.Runtime.Remoting.Messaging.IMethodCallMessage 方法调用消息）（在：0） System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize （System.IO.Stream 序列化流， System.Runtime.Remoting.Messaging.HeaderHandler 处理程序， System.Boolean fCheck，System.Boolean isCrossAppDomain， System.Runtime.Remoting.Messaging.IMethodCallMessage 方法调用消息）（在：0） System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize （System.IO.Stream 序列化流， System.Runtime.Remoting.Messaging.HeaderHandler 处理程序， System.Boolean fCheck, System.Runtime.Remoting.Messaging.IMethodCallMessage 方法调用消息）（在：0） System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize （System.IO.Stream 序列化流， System.Runtime.Remoting.Messaging.HeaderHandler 处理程序， System.Boolean fCheck) (at :0) System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize （System.IO.Stream 序列化流， System.Runtime.Remoting.Messaging.HeaderHandler 处理程序）（在 :0) System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize （System.IO.Stream 序列化流）（在 :0) SaveManager.LoadFile () (在 Assets/SaveGame/SaveManager.cs:42) SaveManager.Load () (在 资产/SaveGame/SaveManager.cs:28) UnityEngine.Events.InvokableCall.Invoke() (在 :0) UnityEngine.Events.UnityEvent.Invoke () (在 :0) UnityEngine.UI.Button.Press() （在 D:/程序 文件/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/UI/Core/Button.cs:68) UnityEngine.UI.Button.OnPointerClick （UnityEngine.EventSystems.PointerEventData eventData）（在 D:/Program 文件/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/UI/Core/Button.cs:110) UnityEngine.EventSystems.ExecuteEvents.Execute （UnityEngine.EventSystems.IPointerClickHandler 处理程序， UnityEngine.EventSystems.BaseEventData eventData) (在 D:/Program 文件/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/ExecuteEvents.cs:50) UnityEngine.EventSystems.ExecuteEvents.Execute[T] （UnityEngine.GameObject 目标，UnityEngine.EventSystems.BaseEventData 事件数据，UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] 函子）（在 D:/Program 文件/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/ExecuteEvents.cs:261) UnityEngine.EventSystems.EventSystem:Update()（在 D:/Program Files/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/EventSystem.cs:377)

public class SaveManager : MonoBehaviour
{
     private string SavePath => Path.Combine(Application.persistentDataPath, "save.text");

    private void Awake()
    {
        DontDestroyOnLoad(this);
    }
    public void Save()
    {
        var state = LoadFile();
        CaptureState(state);
        SaveFile(state);
    }

    public void Load()
    {
        var state = LoadFile();
        RestoreState(state);
    }

    private Dictionary<string, object> LoadFile()
    {
        if(!File.Exists(SavePath))
        {
            return new Dictionary<string, object>();
        }
        using(FileStream stream = File.Open(SavePath, FileMode.Open))
        {
            var formatter = new BinaryFormatter();
            return(Dictionary<string, object>)formatter.Deserialize(stream);
        }
    }

    private void SaveFile(object state)
    {
        using(var stream = File.Open(SavePath, FileMode.Create))
        {
            var formatter = new BinaryFormatter();
            formatter.Serialize(stream, state);
        }
    }

    private void CaptureState(Dictionary<string, object> state)
    {
        foreach(var saveable in FindObjectsOfType<Entity>())
        {
            state[saveable.Id] = saveable.CaptureState();
        }
    }

    private void RestoreState(Dictionary<string, object> state)
    {
        foreach(var saveable in FindObjectsOfType<Entity>())
        {
            if(state.TryGetValue(saveable.Id, out object value))
            {
                saveable.RestoreState(value);
            }
        }
    }
}

Answer 1

从“C:\Users\AppData\LocalLow”中删除保存的数据文件后，这一切都解决了，因为问题是我在保存文件后更改了数据模型，这使得文件中的现有数据模型不同，并使其在反序列化时引发错误。