Error 1 error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall AnalogClock::AnalogClock(class QWidget *)" (__imp_??0AnalogClock@@QAE@PAVQWidget@@@Z) referenced in function "public: void __thiscall Ui_Dialog::setupUi(class QDialog *)" (?setupUi@Ui_Dialog@@QAEXPAVQDialog@@@Z) main.obj
Error 2 error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall AnalogClock::metaObject(void)const " (?metaObject@AnalogClock@@UBEPBUQMetaObject@@XZ) main.obj
Error 3 error LNK2001: unresolved external symbol "public: virtual void * __thiscall AnalogClock::qt_metacast(char const *)" (?qt_metacast@AnalogClock@@UAEPAXPBD@Z) main.obj
Error 4 error LNK2001: unresolved external symbol "public: virtual int __thiscall AnalogClock::qt_metacall(enum QMetaObject::Call,int,void * *)" (?qt_metacall@AnalogClock@@UAEHW4Call@QMetaObject@ @HPAPAX@Z) main.obj
Error 5 error LNK2001: unresolved external symbol "protected: virtual void __thiscall AnalogClock:aintEvent(class QPaintEvent *)" (?paintEvent@AnalogClock@@MAEXPAVQPaintEvent@@@Z) main.obj



my *.pro file

TEMPLATE = app
TARGET +=
DEPENDPATH += .
INCLUDEPATH += C:\Qt\4.1.4\examples\designer\customwidgetplugin



# Input
FORMS += form.ui
SOURCES += main.cpp