ISO C++은 ... 형식이없는 선언을 금지합니다.

Question

저는 maemo 용 Qt 모바일 응용 프로그램을 만들기 위해 C++을 사용하고 있습니다.

나는 나의 클래스 선언을 가지고,하지만 난이 오류 얻을 :

ISO C++ forbids declaration of 'QGeoPositionInfoSource' with no type 

다음 내 코드 :

phonehelper.h

#ifndef PHONEHELPER_H 
#define PHONEHELPER_H 

#include <QObject> 
#include <QGeoPositionInfoSource> 


class PhoneHelper : public QObject 
{ 
    Q_OBJECT 

public: 
    explicit PhoneHelper(QObject *parent = 0); 
    void GetGPSData(const char * callbackSlot); 

private: 
    /* 
    * The error occures here on the line below */ 
    QGeoPositionInfoSource *gpsSource;   // PROBLEM HERE 

private slots: 
    void positionUpdated(const QGeoPositionInfo &info); 
}; 

#endif // PHONEHELPER_H 

phonehelper.cpp

을

#include "phonehelper.h" 

PhoneHelper::PhoneHelper(QObject *parent) : 
    QObject(parent) 
{ 
} 

PhoneHelper::GetGPSData(const char *callbackSlot) 
{ 
    gpsSource = QGeoPositionInfoSource::createDefaultSource(this); 
      if (gpsSource) { 
       connect(source, SIGNAL(positionUpdated(QGeoPositionInfo)), 
         this, SLOT(positionUpdated(QGeoPositionInfo))); 
       connect(source, SIGNAL(positionUpdated(QGeoPositionInfo)), 
         this, SLOT(callbackSlot(QGeoPositionInfo))); 
       gpsSource->startUpdates(); 
      } 
} 

PhoneHelper::positionUpdated(const QGeoPositionInfo &info) 
{ 
     gpsSource->stopUpdates(); 
     delete gpsSource; 
} 

Project.pro

DEPLOYMENTFOLDERS = # file1 dir1 

symbian:TARGET.UID3 = 0xE0EEBE99 


symbian:TARGET.CAPABILITY += NetworkServices 

# MOBILITY variable. 
CONFIG += mobility 
MOBILITY += location 

SOURCES += main.cpp mainwindow.cpp \ 
    phonehelper.cpp 
HEADERS += mainwindow.h \ 
    phonehelper.h 
FORMS += mainwindow.ui 


include(deployment.pri) 
qtcAddDeployment() 

위의 오류가 무엇을 의미합니까?

Answer 1

내가 정확하게 오류를 트리거 라인과 정확한 오류 텍스트를 제공하는 말을 잊었이 using namespace QtMobility;