QT编译通过但是不能运行，求各位大神帮帮忙

C:\Users\wuyimin\map-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK____\debug\map.exe 启动中...
Error - RtlWerpReportException failed with status code :-1073741696. Will try to launch the process directly
Qt: Untested Windows version 6.2 detected!
程序异常终止。

代码
头文件：
#ifndef ADMIN_H
#define ADMIN_H

#include <QtGui/QApplication>
#include <QDialog>
#include <QList>
#include <QStringList>
//#include <QTextStream>
#include <QFile>

namespace Ui {
class admin;
}

class admin : public QDialog
{
    Q_OBJECT

public:
    explicit admin(QWidget *parent = 0);
    ~admin();
    QList<QString>Bcityname;
    QList<int>Bcitynum;
    QList<int>CX;
    QList<int>CY;
    void buildcity();

private slots:
    void on_pushButton_clicked();

    void on_pushButton_6_clicked();

private:
    Ui::admin *ui;
};

#endif // ADMIN_H

cpp：

#include "admin.h"
#include "ui_admin.h"
#include <QFile>
#include <QTextStream>

admin::admin(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::admin)
{
    ui->setupUi(this);
}

admin::~admin()
{
    delete ui;
}

void admin::buildcity()
{
    QString cityname = ui->lineEdit->text();
    Bcityname.append(cityname);
    int citynum = ui->lineEdit_2->text().toInt();
    Bcitynum.append(citynum);
    int cityX = ui->lineEdit_3->text().toInt();
    CX.append(cityX);
    int cityY = ui->lineEdit_4->text().toInt();
    CY.append(cityY);
}

void admin::on_pushButton_clicked()
{
    buildcity();
}

void admin::on_pushButton_6_clicked()
{
    QFile file("city.txt");
    //if(file.open(IO_WriteOnly))
//   {
        QTextStream stream(&file);
       // for(QStringList::Iterator it = Bcitynum.begin();it!=Bcitynum.end();++it)
        stream<<"oo"<<"\n";
        file.close();
//   }
}
Qt UI --------------------编程问答--------------------
如果启动时报错，那么你这些代码中只有构造函数有些用处，但是它看起来没什么问题。

你还是先自己调试程序，定位一下错误在那儿吧。 --------------------编程问答-------------------- 调试运行,看是哪里出的问题。

补充：移动开发 ,  Qt