Android Unity C# : Unauthorizedaccessexception Writing Save Game Data

I'm debugging a Unity game in Android, everything works in the Unity editor. I'm receiving an UnauthorizedAccessException when saving the current game data on Android. I am writin

Solution 1:

You have to check if the directory exist with Directory.Exists before writing to that path. If it does not, use Directory.CreateDirectory to create it.

Note that it's not a good idea to save file directly to Application.persistentDataPath. You have to create a folder inside it first then put save your file inside that folder. So Application.persistentDataPath/yourcreatedfolder/yourfile.extension is fine. By doing this, your code will also work on iOS.

This is what that code should look like:

stringsaveGameFileName="current";
stringfilePath= Path.Combine(Application.persistentDataPath, "data");
filePath = Path.Combine(filePath, saveGameFileName + ".sg");


//Create Directory if it does not existif (!Directory.Exists(Path.GetDirectoryName(filePath)))
{
    Directory.CreateDirectory(Path.GetDirectoryName(filePath));
}

try
{
    BinaryFormatterbf=newBinaryFormatter();
    FileStreamfile=newFileStream(filePath, FileMode.Create);
    GameDatadata=newGameData(currentGame);
    bf.Serialize(file, data);
    file.Close();
    Debug.Log("Saved Data to: " + filePath.Replace("/", "\\"));
}
catch (Exception e)
{
    Debug.LogWarning("Failed To Save Data to: " + filePath.Replace("/", "\\"));
    Debug.LogWarning("Error: " + e.Message);
}