XMLSerializer giving encoding errors when running build

My serializing deserializing seems to be working fine, but when I run the build, it gives me these errors in the development console:

Code (csharp):

1. ArgumentException: Encoding name 'shift_jis' not supported
2.  
3. Parameter name: name
4.   at System.Text.Encoding.GetEncoding (System.String name) [0x000ed] in /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/corlib/System.Text/Encoding.cs:718
5.  
6.   at System.Xml.XmlInputStream.Initialize (System.IO.Stream stream) [0x00265] in /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/System.XML/System.Xml/XmlInputStream.cs:459
7.  
8.   at System.Xml.XmlInputStream..ctor (System.IO.Stream stream) [0x00006] in /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/System.XML/System.Xml/XmlInputStream.cs:359
9.  
10.   at System.Xml.XmlStreamReader..ctor (System.IO.Stream input) [0x00000] in <filename unknown>:0
11.  
12.   at System.Xml.XmlTextReader..ctor (System.IO.Stream input) [0x00000] in <filename unknown>:0
13.  
14.   at System.Xml.Serialization.XmlSerializer.Deserialize (System.IO.Stream stream) [0x00000] in /Users/builduser/buildslave/monoAndRuntimeClassLibs/build/mcs/class/System.XML/System.Xml.Serialization/XmlSerializer.cs:327
15.  
16.   at SaveManager.Load[TitleSave] (.TitleSave obj, System.String path) [0x0005b] in D:\Projects\Novalis\Assets\Scripts\WorldManagement\SaveManager.cs:45
17.  
18.   at scr_TitleManager.Start () [0x00095] in D:\Projects\Novalis\Assets\Scripts\scr_TitleManager.cs:39

As far as I'm aware, I'm not using shift_jis encoding, I'm using ASCII. My OS is Japanese, so could that be causing some sort of problem? Everything is actually working fine, but I don't really want to ignore the errors, as it could possibly cause some issues down the line.
Anyone have any advice for this?

Here is my serializing/deserializing code:

Code (csharp):

1.  
2. using System.Xml.Serialization;
3. using System.Xml;
4. using System.IO;
5. using System.Security.Cryptography;
6. using System.Security;
7. using System.Text;
8.  
9. public class SaveManager {
10.  
11.     // XML SAVING
12.     public static void Save<T>(T obj, string path){
13.         string sKey = "Testing1";
14.  
15.         var serializer = new XmlSerializer(obj.GetType());
16.         var stream = new FileStream(path, FileMode.Create);
17.  
18.         //Create Encryption stuff
19.         DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
20.         DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
21.         DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
22.        
23.         ICryptoTransform desencrypt = DES.CreateEncryptor();
24.  
25.         using(CryptoStream cStream = new CryptoStream(stream, desencrypt, CryptoStreamMode.Write)){
26.             serializer.Serialize(cStream, obj);
27.         }
28.  
29.         stream.Close ();
30.  
31.     }
32.     public static void Load<T>(ref T obj, string path){
33.         string sKey = "Testing1";
34.  
35.         var serializer = new XmlSerializer(obj.GetType());
36.         var stream = new FileStream(path, FileMode.Open);
37.  
38.         //Create Encryption stuff
39.         DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
40.         DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
41.         DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
42.        
43.         ICryptoTransform desdecrypt = DES.CreateDecryptor();
44.  
45.         using(CryptoStream cStream = new CryptoStream(stream, desdecrypt, CryptoStreamMode.Read)){
46.             obj = (T)serializer.Deserialize(cStream);
47.         }
48.  
49.         stream.Close ();
50.     }
51. }
52.  
53.  

 

For anyone that encounters this issue in the future:
Changing it from ASCIIEncoding.ASCII to UnicodeEncoding.ASCII fixed the issue. I assume that this is because a Japanese OS only supports shift_jis and Unicode, and when using ASCII encoding, it seems to automatically use shift_jis, which isn't supported by the XMLSerializer.