c# – 无法识别指定的类型

{“The specified type was not recognized: name=’VitalsPlugin’,
namespace=”,at .”}

码：

public class SimpleSerializer
{
    static void Main()
    {
        string xml = "<Plugin xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="VitalsPlugin" ID="eaded5f3-7019-47b9-8f9f-e7c1879774f4"><CopyForwardChecked>true</CopyForwardChecked></Plugin>";
        StringReader reader = new StringReader(xml);
        var result = Deserialize(reader);
    }

    static Plugin Deserialize(TextReader xml)
    {
        XmlSerializer xsr = new XmlSerializer(typeof(Plugin),new Type[] {typeof(VitalsPlugin)});
        Plugin result = xsr.Deserialize(xml) as Plugin;

        return result;
    }
}

其他有用的代码：

[XmlInclude(typeof(VitalsPlugin))]
public class Plugin
{
}

public class VitalsPlugin
{
}