「クラスが見つかりませんでした」というメッセージが表示されるのはなぜですか？

Question

デバイスやエミュレータに関係なく、アプリを実行すると、Androidスタジオログに一連の（赤い）"Could not find class"メッセージが表示されます。しかし、アプリは正常に動作しています。セットアップに何が問題なのですか？私はgradle 2.1.0を使用します。ここで

は、ログです：あなたが取得している

07-06 17:18:26.154 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.util.ArrayMap', referenced from method com.android.tools.fd.runtime.MonkeyPatcher.pruneResourceCache 
07-06 17:18:26.224 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.UserHandle', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.254 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.274 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.315 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.UserHandle', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.315 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.345 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.365 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.UserHandle', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.405 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:26.415 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method info.myApp.main.SplashActivity.access$super 
07-06 17:18:27.015 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.UserHandle', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.035 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.075 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.125 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.UserHandle', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.125 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.185 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.205 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.UserHandle', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.205 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.205 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method info.myApp.main.MainActivity.access$super 
07-06 17:18:27.936 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.animation.StateListAnimator', referenced from method info.myApp.view.SquareFrameLayout.access$super 
07-06 17:18:28.026 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.view.SquareFrameLayout.access$super 
07-06 17:18:28.106 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.view.SquareFrameLayout.access$super 
07-06 17:18:28.166 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.view.SquareFrameLayout.access$super 
07-06 17:18:28.196 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.view.SquareFrameLayout.access$super 
07-06 17:18:28.377 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewOutlineProvider', referenced from method info.myApp.pager.VerticalPager.access$super 
07-06 17:18:28.387 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnApplyWindowInsetsListener', referenced from method info.myApp.pager.VerticalPager.access$super 
07-06 17:18:28.477 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnContextClickListener', referenced from method info.myApp.pager.VerticalPager.access$super 
07-06 17:18:28.527 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnScrollChangeListener', referenced from method info.myApp.pager.VerticalPager.access$super 
07-06 17:18:28.567 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.pager.VerticalPager.access$super 
07-06 17:18:28.587 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.pager.VerticalPager.access$super 
07-06 17:18:28.817 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.animation.StateListAnimator', referenced from method info.myApp.pager.VerticalCirclePageIndicator.access$super 
07-06 17:18:28.857 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.pager.VerticalCirclePageIndicator.access$super 
07-06 17:18:28.877 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.pager.VerticalCirclePageIndicator.access$super 
07-06 17:18:28.887 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.pager.VerticalCirclePageIndicator.access$super 
07-06 17:18:28.897 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.pager.VerticalCirclePageIndicator.access$super 
07-06 17:18:29.438 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewOutlineProvider', referenced from method info.myApp.view.DrawableView.access$super 
07-06 17:18:29.468 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnApplyWindowInsetsListener', referenced from method info.myApp.view.DrawableView.access$super 
07-06 17:18:29.528 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnContextClickListener', referenced from method info.myApp.view.DrawableView.access$super 
07-06 17:18:29.578 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnScrollChangeListener', referenced from method info.myApp.view.DrawableView.access$super 
07-06 17:18:29.608 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.view.DrawableView.access$super 
07-06 17:18:29.648 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.view.DrawableView.access$super 
07-06 17:18:31.059 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.animation.StateListAnimator', referenced from method info.myApp.view.Zoomable2BBoxMapView.access$super 
07-06 17:18:31.149 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.view.Zoomable2BBoxMapView.access$super 
07-06 17:18:31.179 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.view.Zoomable2BBoxMapView.access$super 
07-06 17:18:31.199 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.view.Zoomable2BBoxMapView.access$super 
07-06 17:18:31.219 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.view.Zoomable2BBoxMapView.access$super 
07-06 17:18:31.890 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewOutlineProvider', referenced from method info.myApp.pager.HorizontalPager.access$super 
07-06 17:18:31.910 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnApplyWindowInsetsListener', referenced from method info.myApp.pager.HorizontalPager.access$super 
07-06 17:18:31.950 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnContextClickListener', referenced from method info.myApp.pager.HorizontalPager.access$super 
07-06 17:18:32.120 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnScrollChangeListener', referenced from method info.myApp.pager.HorizontalPager.access$super 
07-06 17:18:32.140 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.pager.HorizontalPager.access$super 
07-06 17:18:32.270 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.pager.HorizontalPager.access$super 
07-06 17:18:32.400 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.animation.StateListAnimator', referenced from method info.myApp.pager.HorizontalCirclePageIndicator.access$super 
07-06 17:18:32.440 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.pager.HorizontalCirclePageIndicator.access$super 
07-06 17:18:32.440 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.pager.HorizontalCirclePageIndicator.access$super 
07-06 17:18:32.450 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.pager.HorizontalCirclePageIndicator.access$super 
07-06 17:18:32.450 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.pager.HorizontalCirclePageIndicator.access$super 
07-06 17:18:32.631 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewOutlineProvider', referenced from method info.myApp.view.StylableMediaController.access$super 
07-06 17:18:32.641 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnApplyWindowInsetsListener', referenced from method info.myApp.view.StylableMediaController.access$super 
07-06 17:18:32.691 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnContextClickListener', referenced from method info.myApp.view.StylableMediaController.access$super 
07-06 17:18:32.731 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.View$OnScrollChangeListener', referenced from method info.myApp.view.StylableMediaController.access$super 
07-06 17:18:32.781 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.ViewStructure', referenced from method info.myApp.view.StylableMediaController.access$super 
07-06 17:18:32.811 32218-32218/info.myApp E/dalvikvm: Could not find class 'android.view.WindowInsets', referenced from method info.myApp.view.StylableMediaController.access$super 
07-06 17:18:51.980 32218-32758/info.myApp E/BellagioCore: ST Static Component Loader : Cannot open OpenMAX registry file /tmp/.omxregister 

                        [ 07-06 17:18:51.980 32218:32758 D/   ] 
07-06 17:18:55.173 32218-32758/info.myApp E/BellagioCore: ST Static Component Loader : Cannot open OpenMAX registry file /tmp/.omxregister 

                        [ 07-06 17:18:55.173 32218:32758 D/   ] 
                       In STEOMXCodecsPlugin:: GetpOMX_Init passed 

Answer 1

ログは正常です。それらは単にコードから参照されるクラスを表します条件付き。したがって、存在するかどうかは関係ありません。

あなたのデバイスやあなたがアプリケーションを実行しているエミュレータには存在しないため、これらは見つかりません。

なぜ存在しないのですか？これは新しいAndroidバージョンで導入されたためです。

ピックアップ例えばログからのあなたの最初のクラス：

がクラスを見つけることができませんでした「android.util.ArrayMap」

ArrayMapは、おそらくあなたのアプリを実行している、API level 19で導入されました古いバージョンでは

余分なもの：

アプリは完全に罰金実行されているので、あなたがこれらのメッセージを無視することができます。クラスがないために問題が発生するのは、これらのクラスに依存するコードを実行しようとするときだけです。 ArrayMapのような場合は、android.util.ArrayMap