cocos2d-x CCArrary问题导致系统崩溃

请大家帮忙看看，m_monsterArr的状态貌似不对，但不知道哪里错了，报错的内容好像是无法认领child

 MonsterManager.h
private:
CCArray *m_monsterArr;  //存放怪物对象列表

MonsterManager.cpp
void MonsterManager::createMonsters(){
m_monsterArr = CCArray::create();
m_monsterArr->retain();
CCLOG("count is %d",m_monsterArr->count());

Monster *monster = NULL;
CCSprite *sprite = NULL;

//for(int i = 0;i<MAX_MONSTER_NUM;i++)F
for(int i = 0;i<2;i++){
/*创建怪物对象*/
monster = Monster::create();
monster->bindSprite(CCSprite::create("monster.png"));
monster->reset();

/*添加怪物对象*/
this->addChild(monster);

/*保存怪物对象到列表中，方便管理*/
m_monsterArr->addObject(monster);
}
}

主函数
bool TollgateScene::init(){
bool bRet = false;
do{
CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();

/*游戏标题图片*/
CCSprite *titleSprite = CCSprite::create("title.png");
titleSprite->setPosition(ccp(visibleSize.width/2,visibleSize.height - 50));
this->addChild(titleSprite,2);

/*创建主角*/
m_player = Player::create();
m_player->bindSprite(CCSprite::create("sprite.png"));
m_player->setPosition(ccp(visibleSize.width/2 - 120,visibleSize.height/2 - 120));
//m_player->setPosition(ccp(200,visibleSize.height/4));
this->addChild(m_player,3);

/*初始化背景图片*/
initBG();

/*创建Jump按钮*/
//createJumpBtn();

/*妖怪管理器*/
MonsterManager *monsterMgr = MonsterManager::create();
//monsterMgr = MonsterManager::create();
this->addChild(monsterMgr,4);-->运行到这里报错

/*每一帧调用scheduleUpdate*/
this->scheduleUpdate();

bRet = true;
}while(0);

return bRet;
}

运行完“MonsterManager *monsterMgr = MonsterManager::create()”后的状态以及错误报告

CCarray你要删除的话 不能随意从中间删除，这是他数据结构的问题