编译错误g ++

基于快速扫描代码

void eventCallback(ManagerEvent* me) {
    std::cout << std::endl << "TEST:EVENT" << me->toLog() << std::endl;
} 

应该

void eventCallback(const ManagerEvent& me) {
    std::cout << std::endl << "TEST:EVENT" << me.toLog() << std::endl;
}