无数＆＃34;无法找到课程＆＃34; logcat突然出错

Question

我在日志中得到了绝对的这些错误，这使我很难找到自己的输出。应用程序没有崩溃，一切都在运行，我只是不明白为什么所有这些错误消息都会弹出。

有些错误来自我自己的类，抱怨＆＃34; android.os.PersistableBundle＆＃34;，但我没有在任何地方使用该类，其余部分来自SlidingTabLayout和SlidingTabStrip谷歌自己。

我的minSDK是18，我的活动是AppCompatActivity。可以在此处找到SlidingTabStrip和SlidingTabLayout的代码：https://github.com/google/iosched/tree/master/android/src/main/java/com/google/samples/apps/iosched/ui/widget。

我不知道我的2.000行代码中的哪一行可能会出现这些错误，但它们只出现在我的Android 4.4.4设备上，而不是我的Android 5.1.1设备上。

09-03 19:23:32.428 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.437 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.439 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.447 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.widget.Toolbar', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.455 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.465 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.467 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.485 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.503 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.assist.AssistContent', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.508 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method com.myapp.Splash.access$super
09-03 19:23:32.516 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.Splash.access$super
09-03 19:23:34.089 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.095 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.097 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.098 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.widget.Toolbar', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.106 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.118 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.120 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.130 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.138 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.app.assist.AssistContent', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.141 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.146 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.myapp.MainActivity.access$super
09-03 19:23:34.201 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewOutlineProvider', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.203 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.animation.StateListAnimator', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.207 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.View$OnApplyWindowInsetsListener', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.214 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.239 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.View$OnContextClickListener', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.247 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.253 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.View$OnScrollChangeListener', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.258 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.265 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.266 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.274 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method com.myapp.SlidingTabLayout.access$super
09-03 19:23:34.315 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewOutlineProvider', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.317 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.animation.StateListAnimator', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.321 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.View$OnApplyWindowInsetsListener', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.328 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.334 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.View$OnContextClickListener', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.341 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.346 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.View$OnScrollChangeListener', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.352 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.358 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.360 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.366 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method com.myapp.SlidingTabStrip.access$super
09-03 19:23:34.411 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
09-03 19:23:34.455 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.bluetooth.le.ScanCallback', referenced from method com.myapp.BluetoothService.access$1000
09-03 19:23:34.457 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.bluetooth.le.BluetoothLeScanner', referenced from method com.myapp.BluetoothService.access$1100
09-03 19:23:34.458 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.bluetooth.le.ScanSettings', referenced from method com.myapp.BluetoothService.access$900
09-03 19:23:34.481 8273-8273/com.myapp E/dalvikvm: Could not find class 'com.myapp.BluetoothService$5', referenced from method com.myapp.BluetoothService.initScanCallback
09-03 19:23:34.734 8273-8273/com.myapp E/dalvikvm: Could not find class 'android.widget.ThemedSpinnerAdapter', referenced from method android.support.v7.widget.AppCompatSpinner$DropDownAdapter.<init>