Persistent Data Storage - Unity Serialization Error on iOS

Unity Engine
,
1

Error in Xcode:

SerializationException: Unexpected binary element: 255

at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObject (BinaryElement element, System.IO.BinaryReader reader, System.Int64& objectId, System.Object& value, System.Runtime.Serialization.SerializationInfo& info) [0x00000] in :0

at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadNextObject (BinaryElement element, System.IO.BinaryReader reader) [0x00000] in :0

at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectGraph (BinaryElement elem, System.IO.BinaryReader reader, Boolean readHeaders, System.Object& result, System.Runtime.Remoting.Messaging.Header[ ]& headers) [0x00000] in :0

at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.NoCheckDeserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler) [0x00000] in :0

at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream) [0x00000] in :0

at GameControl.Load () [0x00000] in :0

at OnClickNavigateTo.Start () [0x00000] in :0

(Filename: Line: -1)

Serialization Class in Unity (GameControl.cs):
///////BEGIN GameControl.cs CODE BLOCK
usingUnityEngine;
usingSystem.Collections;
usingSystem.Collections.Generic;
usingSystem;
usingSystem.Runtime.Serialization.Formatters.Binary;
usingSystem.IO;

//PersistentDataStorage
public class GameControl : MonoBehaviour {

public static Game Controlcontrol;
public bool DebugMode = false;
public string locationString = “/saveData.dat”;
public int playthroughs;
public int currentCharacter;

void Awake (){
if(control == null) {
DontDestroyOnLoad(gameObject);
control = this;
} else if(control != this) {
Destroy(gameObject);
}
}

void OnGUI(){
if (DebugMode){
GUI.Label (new Rect (10, 10, 100, 30), "App Usage: " + playthroughs);
GUI.Label (new Rect (10, 40, 150, 30), "Character Target: " + currentCharacter); }
}

public void Save(){
BinaryFormatter bf = new BinaryFormatter();
FileStream file = File.Create(Application.persistentDataPath + locationString);

PlayerData data = new PlayerData (); data.playthroughs = playthroughs; data.currentCharacter = currentCharacter;

bf.Serialize (file, data); file.Close();
}

public void Load(){
if (File.Exists (Application.persistentDataPath + locationString)) {
BinaryFormatter bf = new BinaryFormatter(); FileStream file = File.Open(Application.persistentDataPath + locationString, FileMode.Open); PlayerData data = (PlayerData)bf.Deserialize(file);
file.Close ();

playthroughs = data.playthroughs;
currentCharacter = data.currentCharacter;
}
}
}

[Serializable]
class PlayerData{
public int playthroughs;
public int currentCharacter;
}

///////END GameControl.cs CODE BLOCK

Everything runs perfectly on my MacBook, but not on iPhone4S which must, for my current needs, be my target platform.
Ever run into this? Not much help available online.

Thank you for your help.

  • Ben
2

Solution Found! My good friend Ari found this thread, that had the solution I needed: Why did my BinarySerialzer stop working? - Questions & Answers - Unity Discussions

Here is the critical excerpt that fit into my class:

3 Likes
3

I was thinking about that post as soon as I saw your post title. Glad you found it. It sure saved me back when I needed it.