骨骼动画的内存泄露问题

我加载了例子里的动画文件,如下
CCArmatureDataManager::sharedArmatureDataManager()->addArmatureFileInfo(“armature/Cowboy.ExportJson”);
CCArmature* armature=CCArmature::create(“Cowboy”);
this->addChild(armature);
用vld报告会有内存泄露,请问这要怎么释放?