Can't deserialize: throws exception "..error in XML document(2,2)"

[test]

I get an exception ...." There is an error in XML document(2,2)." on deserializing. Pls Help

<?xml version="1.0" encoding="utf-8" ?>
<PresetRecord xmlns=http://test>
<CameraAPipelin e type="key">
<PresetID type="dword">2</PresetID>
</CameraAPipeline >
</PresetRecord>
here's the class I am using:

public class PresetRecord {

public CameraAPipeline cameraAPipeline ;
public PresetRecord() {}
}
public class CameraAPipeline
{
[XmlAttribute]
public string type;
[XmlElement]
public PresetID presetID;
public CameraAPipeline () {}
}
public class PresetID
{
[XmlAttribute]
public string type;
[System.Xml.Seri alization.XmlTe xtAttribute()]
public string Text;
public PresetID() {}
}
..............
FileStream fs = new FileStream(file Path, FileMode.Open);
reader = new XmlTextReader(f s);
serializer = new XmlSerializer(t ypeof(PresetRec ord));
PresetRecord aRecord = new PresetRecord();
aRecord = (PresetRecord)s erializer.Deser ialize(reader);
............