Eclipse Libgdx android项目不再导出AndroidLauncher

我在eclipse中有一个libgdx android项目，我已经成功导出了几个星期了。今天我在启动apk时发现了一些奇怪的事情：

java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{at.test.game.android/at.test.game.android.AndroidLauncher}: java.lang.ClassNotFoundException: Didn't find class "at.test.game.android.AndroidLauncher" on path: DexPathList[[zip file "/data/app/at.test.game.android-1/base.apk"],nativeLibraryDirectories=[/data/app/at.test.game.android-1/lib/arm, /vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2515)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2725)
at android.app.ActivityThread.access$900(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5834)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
Caused by: java.lang.ClassNotFoundException: Didn't find class "at.test.game.android.AndroidLauncher" on path: DexPathList[[zip file "/data/app/at.test.game.android-1/base.apk"],nativeLibraryDirectories=[/data/app/at.test.game.android-1/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1079)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2505)
... 10 more
Suppressed: java.lang.ClassNotFoundException: at.test.game.android.AndroidLauncher
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

在检查生成的APK时，我注意到我的src文件夹的内容不是APK src文件夹的一部分，这意味着包括AndroicLauncher.class在内的所有内容都丢失了

由于在导出android应用程序时没有可配置的选项，我很不明白为什么现在会突然发生这种情况。 任何想法都将不胜感激

解决：我没有注意到，由于我添加了google play计费api，构建配置文件将不再获得构建。昨天我清理了所有的二进制文件，现在当我尝试导出我的应用程序时，我的ApplicationLauncher类无法编译。解决方案是以管理员的身份启动eclipse，从而允许处理google账单api