[SOLVED]qstring.h:919: undefined reference to `QArrayData::deallocate

[unixmania]

i cant find any solution above error.i have just main.cpp:
@#include "tic.h"
int main(int argc,char* argv[]){
QApplication app(argc, argv);
Ui::Form ui;
QWidget* form=new QWidget();
ui.setupUi(form);
form->setVisible(true);
return app.exec();
}
@
and tic.h:
@#ifndef TIC_H
#define TIC_H
#include <QtWidgets/QtWidgets>
QT_BEGIN_NAMESPACE

class Ui_Form
{
public:
QLabel *lab1;
QLabel *lab2;
QSpinBox *heigh;
QSpinBox *widt;
QPushButton *buton;

void setupUi(QWidget *Form)
{
    if (Form->objectName().isEmpty())
        Form->setObjectName(QStringLiteral("Form"));
    Form->resize(400, 300);
    lab1 = new QLabel(Form);
    lab1->setObjectName(QStringLiteral("lab1"));
    lab1->setGeometry(QRect(20, 10, 81, 24));
    lab2 = new QLabel(Form);
    lab2->setObjectName(QStringLiteral("lab2"));
    lab2->setGeometry(QRect(170, 10, 81, 24));
    heigh = new QSpinBox(Form);
    heigh->setObjectName(QStringLiteral("heigh"));
    heigh->setGeometry(QRect(40, 60, 60, 33));
    heigh->setMinimum(3);
    heigh->setMaximum(10);
    widt = new QSpinBox(Form);
    widt->setObjectName(QStringLiteral("widt"));
    widt->setGeometry(QRect(180, 60, 60, 33));
    widt->setMinimum(3);
    widt->setMaximum(10);
    buton = new QPushButton(Form);
    buton->setObjectName(QStringLiteral("buton"));
    buton->setGeometry(QRect(110, 130, 125, 33));

Form->setWindowTitle("TicTacToe");
lab1->setText("height");
lab2->setText("width");
buton->setText("start");
} // setupUi
};

namespace Ui {
class Form: public Ui_Form {};
} // namespace Ui

QT_END_NAMESPACE

#endif // TIC_H@

main.cpp compiled successfully.But main.o when linking to executable get above error repetitive. my ENV:qt 5.1.0 archlinux on x86_64 corei5 desktop.No cross compile.Help me please.

[unixmania]

never mind.i just forget QT += widgets
this is mandotory needed for gui on qt5

[SGaist]

Great you found out !

Could you also update your thread's title prepending solved so other forum users may know a solution as been found ? :)