'qnetworkreply'尚未宣布

Question

这是我的代码，但它给了我错误“'qnetworkreply'尚未宣布”。任何人都可以告诉它为何如此

#ifndef ApplicationUI_HPP_
#define ApplicationUI_HPP_

#include <QObject>
namespace bb { namespace cascades { class Application; }}

class ApplicationUI : public QObject
{
    Q_OBJECT
public:
    ApplicationUI(bb::cascades::Application *app);
    virtual ~ApplicationUI() {}

    public slots:
    void onResult(QNetworkReply*);
};


#endif 

Answer 1

您是否在.pro文件中添加了QT += network？