直译是：类声明没有Q_OBJECT 宏。
class CError1 : public QObject
{
signals:
void OnButClicked();
};
class CError2 : public QObject
{
signals:
void OnButClicked();
};
class CError1 : public QObject
{
Q_OBJECT
signals:
void OnButClicked();
};
类声明加上Q_OBJECT就好了。
class CError1 : public QObject
{
Q_OBJECT
signals:
void OnButClicked();
};
class CError2 : public QObject
{
Q_OBJECT
signals:
void OnButClicked();
};
class CError2 : public QObject
{
Q_OBJECT
signals:
void OnButClicked();
};
error : Class declarations lacks Q_OBJECT macro
原文：http://blog.csdn.net/he_zhidan/article/details/43758689
