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.ZCF3882F1C43AB22BFF0BD9D82D83 251BZ.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/S aveManager.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 ta rget, 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);
            }
        }
    }
}

Answer 1

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.