오류 - 아이폰 OS

Question

내가 아이 패드 (Sphero에 연결) 내 응용 프로그램을 실행하려고 할 때 나는 22 오류를 가지고 : 아이폰 OS 6.0에 배포 목표 설정

Undefined symbols for architecture armv7: 
    "std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()", referenced from: 
     __GLOBAL__I_a in RobotKit(RKAchievementManager.o) 
    "operator new[](unsigned long)", referenced from: 
     RKAchievementManager::getAchievements() in RobotKit(RKAchievementManager.o) 
     RKAchievementManager::wsCallLoaded(std::string, std::string, std::string, std::string, int) in RobotKit(RKAchievementManager.o) 
    "std::string::append(char const*, unsigned long)", referenced from: 
     RKAchievementManager::pullAchievements() in RobotKit(RKAchievementManager.o) 
     RKAchievementManager::updateAchievementProgress() in RobotKit(RKAchievementManager.o) 
     RKAchievementManager::pushAchievements() in RobotKit(RKAchievementManager.o) 
     RKAchievementManager::getBallName() in RobotKit(RKAchievementManager.o) 
     std::basic_string<char, std::char_traits<char>, std::allocator<char> > std::operator+<char, std::char_traits<char>, std::allocator<char> >(char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) in RobotKit(RKAchievementManager.o) 
    "std::ios_base::Init::Init()", referenced from: 

Answer 1

. 링커 플래그가 있는지 확인하십시오. -lstdC++