End of Stream encountered before parsing is completed

Question

I was trying to save and load a game but got this error:

SerializationException: End of Stream encountered before parsing was completed. System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run () (at :0) System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize (System.Runtime.Remoting.Messaging.HeaderHandler handler, System.Runtime.Serialization.Formatters.Binary.__BinaryParser serParser, System.Boolean fCheck, System.Boolean isCrossAppDomain, System.Runtime.Remoting.Messaging.IMethodCallMessage methodCallMessage) (at :0) System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler, System.Boolean fCheck, System.Boolean isCrossAppDomain, System.Runtime.Remoting.Messaging.IMethodCallMessage methodCallMessage) (at :0) System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler, System.Boolean fCheck, System.Runtime.Remoting.Messaging.IMethodCallMessage methodCallMessage) (at :0) System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler, System.Boolean fCheck) (at :0) System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler) (at :0) System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream) (at :0) SaveManager.LoadFile () (at Assets/SaveGame/SaveManager.cs:42) SaveManager.Load () (at Assets/SaveGame/SaveManager.cs:28) UnityEngine.Events.InvokableCall.Invoke () (at <7c9c9bc2498143d08e2e3c523ff86731>:0) UnityEngine.Events.UnityEvent.Invoke () (at <7c9c9bc2498143d08e2e3c523ff86731>:0) UnityEngine.UI.Button.Press () (at D:/Program Files/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) (at D:/Program Files/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/UI/Core/Button.cs:110) UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at D:/Program Files/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/ExecuteEvents.cs:50) UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) (at D:/Program Files/2019.4.23f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/ExecuteEvents.cs:261) UnityEngine.EventSystems.EventSystem:Update() (at 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);
            }
        }
    }
}

Have you looked at this question (probably duplicate): https://stackoverflow.com/a/306598/1627113 — Lefteris, May 13 '21 at 09:34
In general [**Stop using `BinaryFormatter`!**](https://learn.microsoft.com/dotnet/standard/serialization/binaryformatter-security-guide) — derHugo, May 13 '21 at 21:28

score 0 · Answer 1 · answered May 13 '21 at 11:03

It all solved after removing saved data file from "C:\Users<Username>\AppData\LocalLow" fixed it because the problem was that I changed data models after saving the file which made the model of the existing data in file different and made it throw errors while deserializing it.

End of Stream encountered before parsing is completed

1 Answers1