我从使用Gingerbread和较低操作系统的设备用户那里获得了NoClassDefFoundError。当用户单击按钮以查看填充了SQLite数据的列表视图时：
java.lang.NoClassDefFoundError: mooney.rotundalaboratoryusermanual.ViewListOfTests
at mooney.rotundalaboratoryusermanual.MainMenu.onClick(MainMenu.java:334)
at android.view.View.performClick(View.java:2532)
at android.view.View$PerformClick.run(View.java:9308)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:143)
at android.app.ActivityThread.main(ActivityThread.java:4293)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
跟踪指的是listactivity，但不确定为什么找不到类......