cocos2d-x发生undefined reference to `XX'错误
LOCAL_SRC_FILES := hellocpp/main.cpp \ ../../Classes/AppDelegate.cpp\ ../../Classes/BaseLayer.cpp\ ../../Classes/BaseScene.cpp\ ../../Classes/BaseSprite.cpp\ ../../Classes/BaseTower.cpp\ ../../Classes/CitymanEnemy.cpp\ ../../Classes/CleanerTower.cpp\ ../../Classes/GameLayer.cpp\ ../../Classes/GameScene.cpp\ ../../Classes/HelloWorldScene.cpp\ ../../Classes/Waypoint.cpp\
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