error: 'connectSlotsByName' is not a member of 'QMetaObject' In file included from .ui_widget.h:40:22: error: 'connectSlotsByName' is not a member of 'QMetaObject'

C:\Users\LENOVO\Documents\untitled13\build\Desktop_Qt_6_4_0_MinGW_64_bit-Debug\ui_widget.h:40: error: 'connectSlotsByName' is not a member of 'QMetaObject'
In file included from ..\..\widget.cpp:2:
./ui_widget.h: In member function 'void Ui_Widget::setupUi(QWidget*)':
./ui_widget.h:40:22: error: 'connectSlotsByName' is not a member of 'QMetaObject'
   40 |         QMetaObject::connectSlotsByName(Widget);
      |                      ^~~~~~~~~~~~~~~~~~