关于QT Designer生成的ui文件，make 时候总提示"undefined reference to `vtable for"解决方法_QT开发

关于QT Designer生成的ui文件，make 时候总提示"undefined reference to `vtable for"
我用QT Designer 生成了的.ui文件，然后用一个类继承了QDialog 和 makefile 生成的 .ui 对应的C++ 文件，编译总是提示"undefined reference to `vtable for" 这个错误！贴上代码，求帮忙看下，谢谢！

C/C++ code

#ifndef GOCELL_H#define GOCELL_H#include <QDialog>#include "ui_gocell.h"class GoCell : public QDialog, public Ui::ToCellDialog{   Q_OBJECT    public:        GoCell(QWidget *parent = 0);  private slots:        void on_lineEdit_textChanged();};#endif

C/C++ code

#include <QApplication>#include "gocell.h"GoCell :: GoCell(QWidget *parent) : QDialog(parent){    setupUi(this);    QRegExp regExp("[A-Za-z][0-9]{0, 2}");    lineEdit->setValidator(new QRegExpValidator(regExp, this));    connect(okButton, SIGNAL(clicked()), this, SLOT(accept()));    connect(cancelButton, SIGNAL(clicked()), this, SLOT(reject()));}void GoCell::on_lineEdit_textChanged(){    okButton->setEnabled(lineEdit->hasAcceptableInput());}

C/C++ code

#include <QApplication>#include "gocell.h"int main(int argc, char* argv[]){    QApplication app(argc, argv);    GoCell *dialog = new GoCell;    dialog->show();    return app.exec();}

编译提示：“undefined reference to `vtable for GoCell'”
ps：ui_gocell.h 这个头文件是用makefile生成的。求帮忙解决，谢谢了

------解决方案--------------------
重新rcc uic moc，全部编译呢？
------解决方案--------------------
楼主可以看看http://blog.csdn.net/chenlong12580/article/details/7431104