安卓加载音乐时 preloadBackgroundMusic 报错 Failed to get the environment using GetEnv()

Cocos2d-x
#1

cocos2d-2.1.5 win7 eclipse3.7.0
安卓加载音乐时
SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic(“audio/xxx.ogg”);
就会报错
Failed to get the environment using GetEnv()
什么原因
#include “SimpleAudioEngine.h”
using namespace CocosDenshion;
都写了
wav mp3 ogg都不行 怎么改

求大神解答