#include using namespace Upp; struct A { void Xmlize(XmlIO &xml) { xml ("v",v); } //<-- exception on 2nd call Value v; }; CONSOLE_APP_MAIN { A a; a.v = "test\ntest"; StoreAsXMLFile(a, "XmlizeTest", "xmlizeTtest"); DDUMP(a.v); a.v = 0; LoadFromXMLFile(a, "xmlizeTtest"); DDUMP(a.v); }