Windows Phone SDK

Hi,

I'm having troubles with the different SDKs used for compiling for Windows Phone 8. The problems comes when trying to use the XElement class of System.Xml.Linq namespace.

This class has different methods declaration in mono framework and in windows phone SDK, specifically the Save method:

In mono: XElement.Save (Method) (String)
In WinPhone 8 SDK: XElement.Save (Method) (Stream)

I've tried to reference each assembly (System.Xml.Linq of 3.5 and System.Xml.Linq of 4.0)
The problem is that if i use the first method (with a string) Mono compiles, Unity builds correctly the VS2012 project, but when it deploys to the phone it throws an exception like "Method save does'nt exists".
If i use the second method (with a stream) Mono compiles, but Unity does'nt build the VS2012 because it does not references correctly the WinPhone SDK library (throws an exception "cannot convert stream to string")

here is a snippet of my method (wich compiles in both Mono and Unity, but crashes in the phone):

string filename = Application.persistentDataPath + "/" + "Options.xml";

XElement rootNode = new XElement("Options");

XElement nodoQuality = new XElement("Quality", (opciones.Shadows) ? "1" : "0");
rootNode.Add(nodoQuality);

XElement nodoShadows = new XElement("Shadows", (opciones.Shadows) ? "1" : "0");
rootNode.Add(nodoShadows);

XElement nodoEffects = new XElement("Effects", (opciones.Effects) ? "1" : "0");
rootNode.Add(nodoEffects);

rootNode.Save(filename);

Maybe i'm doing something wrong or i have a wrong concept of the different subsets of the .NET framework. I can change this method in any suggested way, is there a tutorial or a workaround for saving XML in windows phone?

 

That's quite tricky to solution this stupid trouble... so i'll try to do it in a more "simple" way...

thanks anyway Tautvydas Zilys!