反射的DLL中不能加载xml文件.为什么？

[startray]

Assembly asm = Assembly.LoadFrom(Directory.GetCurrentDirectory() + "\\test.dll");

Type[] ts = asm.GetTypes();
foreach (Type t in ts)
{
if (t.IsClass)
{
if (t.Name == ClassName)
{
object obj = asm.CreateInstance(t.FullName);

MethodInfo mi = t.GetMethod("TestClassname", BindingFlags.Public | BindingFlags.Instance, null, new Type[] { typeof(string) }, null);

List<T> st= (List<T>)mi.Invoke(obj, new object[] { TestStr });
}
}
}


test 类：

public string TestClassname( string TestStr)
{
XPathDocument doc = new XPathDocument(TestStr);
XPathNavigator nav = doc.CreateNavigator();

}

new一个xpathdocument对象时就报错，为什么呀？
Exception has been thrown by the target of an invocation.
targeinvocationexception was unhandled

怎么解决呀？

[zgke]

参数 Uri TestStr 是否正确啊

[cpp2017]

这与反射没关系吧,

[startray]

参数正确。传进去的也对。

[startray]

是一个xml文件路径，我把那个参数拷下来到运行里，一打就能出来。

[startray]

知道原因啦。。。谢谢各位