LNK2019: link to the unresolved external character "private: void __cdecl MainWindow :: on_pushButton_shlicked (void)" (? On_pushButton_clicked @ MainWindow @@ AEAAXXZ) in the function "private: static void __cdecl MainWindow :: qt_static_metacctc» q qt_static_metacctc6cdcl 5/3 Call, int, void * *) "(? Qt_static_metacall @ MainWindow @@ CAXPEAVQObject @@ W4Call @ QMetaObject @@ HPEAPEAX @ Z) and LNK2019: link to the unresolved external symbol" private: void __cdecl MainWindow :: on_pushButton_earthrWeatherAftra_WeatherAftra_Wextra_WeightObjectAbWeftObject MainWindow :: on_pushButton_earthrWellAftree_BellArtJaqEbject MainWindow :: @_pushButt_earthr ? on_pushButton_released @ MainWindow @@ AEAAXXZ) in the function "private: static void __cdecl MainWindow :: qt_static_metacall (class QObject *, enum QMetaObject :: Call, int, void * *)" (? qt_static_metacall @AWTHWEWEWE, 0AWE, Project, void * v) QMetaObject @@ HPEAPEAX @ Z)

such errors are given by my program in qt. Before the appearance of these errors, I stuck released () and clicked () slots to pushButtton, but then removed them. Help

    1 answer 1

    Remove the declaration of these slots ( on_pushButton_clicked , on_pushButton_released , ...) not only from the * .cpp file, but also from the header file (MainWindow.h).