QObject :: connect: такого слота нет QWidget :: makeyourbox () в occQt.cpp: 324

Я новичок здесь.

Пользовательский интерфейс работает хорошо, но когда я нажимаю «okbtn» …

QObject::connect: No such slot QWidget::makeyourbox() in occQt.cpp:324

И когда я нажимаю «cancelbtn», он запускается.

Спасибо за любые ответы,
Eason

код:

void occQt::about2()  //UI
{
QWidget* pWidget = new QWidget;
QLabel* longlabel = new QLabel(tr("long"));
QLabel* widthlabel = new QLabel(tr("width"));
QLabel* highlabel = new QLabel(tr("high"));
longlineedit = new QLineEdit;
widthlineedit = new QLineEdit;
highlineedit = new QLineEdit;
QPushButton* okbtn = new QPushButton(tr("ok"));
QPushButton* cancelbtn = new QPushButton(tr("cancel"));
QGridLayout* gridlayout = new QGridLayout;
QVBoxLayout* dlglayout = new QVBoxLayout;
QHBoxLayout* btnlayout = new QHBoxLayout;
gridlayout->addWidget(longlabel, 0, 0, 1, 1);
gridlayout->addWidget(widthlabel, 1, 0, 1, 1);
gridlayout->addWidget(highlabel, 2, 0, 1, 1);
gridlayout->addWidget(longlineedit, 0, 1, 1, 3);
gridlayout->addWidget(widthlineedit, 1, 1, 1, 3);
gridlayout->addWidget(highlineedit, 2, 1, 1, 3);
longlineedit->setText("5");
widthlineedit->setText("5");
highlineedit->setText("5");
btnlayout->setSpacing(60);
btnlayout->addWidget(okbtn);
btnlayout->addWidget(cancelbtn);
//pWidget->setLayout(gridlayout);
dlglayout->setMargin(50);
dlglayout->addLayout(gridlayout);
dlglayout->addStretch(40);
dlglayout->addLayout(btnlayout);
pWidget->setLayout(dlglayout);
pWidget->setWindowTitle(tr("Make a Box by custom."));
pWidget->show();
connect(okbtn, SIGNAL(clicked()), pWidget, SLOT(makeyourbox()));
//QObject::connect(okbtn, SIGNAL(clicked()), pWidget, SLOT(close()));
connect(cancelbtn, SIGNAL(clicked()), pWidget, SLOT(close()));
}

void occQt::makeyourbox()
{
QString string_a = longlineedit->text();
eason_a = string_a.toInt();
QString string_b = widthlineedit->text();
eason_b = string_b.toInt();
QString string_c = highlineedit->text();
eason_c = string_c.toInt();
TopoDS_Shape aTopoBox = BRepPrimAPI_MakeBox(eason_a, eason_b, eason_c).Shape();
Handle_AIS_Shape anAisBox = new AIS_Shape(aTopoBox);
anAisBox->SetColor(Quantity_NOC_AZURE);
mContext->Display(anAisBox);
}

Когда я запускаю pWidget, нажимаю cancelbtn, ui close.
Нажмите okbtn, ничего не делать ..