我有以下问题： 我尝试用 SupportMapFragment 从 com.google.android.gms.maps.SupportMapFragment 这是谷歌地图Android的一部分API第2版。

I have following problem: I try to use SupportMapFragment from com.google.android.gms.maps.SupportMapFragment which is part of Google Maps Android API v2.

我的第一个办法是增加项目的 Android的SDK \演员\谷歌\ google_play_services \ libproject \谷歌播放services_lib 的位置到Eclipse，并将其设置为引用的项目中的属性 - >项目参考菜单。我还添加了项目的 Java构建路径/项目。错误指标从Eclipse中消失了，但是当我试图运行我的应用程序我得到了的NoClassDefFoundError 例外。

My first approach was to add project to Eclipse from android-sdk\extras\google\google_play_services\libproject\google-play-services_lib location and set it as referenced project in Properties -> Project References menu of MyApp. I also added project to Java Build Path / Projects. Error indicators disappeared from Eclipse but when I tried to run my app I got NoClassDefFoundError exception.

所以，我的第二个方法是从谷歌播放services_lib /库复制罐文件我的项目的libs目录。 MyApp的成功地开始，但在LogCat中，我可以看到死code ...一些消息所以我想这jar文件有另一种方式来引用。

So my second approach was to copy jar file from google-play-services_lib/libs to my project's libs directory. MyApp succesfully started but in LogCat I can see dead code ... something message so I guess that jar file has to be referenced in another way.

而现在我很困惑和疲惫...... 也许有人更有经验，在Android中能告诉我该怎么办？

And now I am confused and tired.. Maybe someone more experienced in Android can tell me what should I do ?

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