为什么android studio LogcatDon'；不显示错误？

我有一个问题，当我在android studio上运行应用程序时，它不会在logcat中显示任何崩溃错误。。我尝试重新启动logcat，但对我无效。我已经搜索了很多关于它的信息，但无法解决此问题。有人可以帮助我吗

    -26 19:47:39.936  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ Resuming ActivityRecord{7d2b2fa token=android.os.BinderProxy@2e9a90ab {dictor.win.com.windictor/dictor.win.com.windictor.Splash}} with isForward=true
03-26 19:47:39.936  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ Scheduling idle handler for ActivityRecord{7d2b2fa token=android.os.BinderProxy@2e9a90ab {dictor.win.com.windictor/dictor.win.com.windictor.Splash}}
03-26 19:47:39.937  27780-27780/dictor.win.com.windictor D/ActivityThread﹕ ACT-LAUNCH_ACTIVITY handled : 0 / ActivityRecord{7d2b2fa token=android.os.BinderProxy@2e9a90ab {dictor.win.com.windictor/dictor.win.com.windictor.Splash}}
03-26 19:47:42.894  27780-27780/dictor.win.com.windictor D/ActivityThread﹕ ACT-AM_ON_PAUSE_CALLED ActivityRecord{7d2b2fa token=android.os.BinderProxy@2e9a90ab {dictor.win.com.windictor/dictor.win.com.windictor.Splash}}
03-26 19:47:42.908  27780-27780/dictor.win.com.windictor D/ActivityThread﹕ ACT-PAUSE_ACTIVITY handled : 1 / android.os.BinderProxy@2e9a90ab
03-26 19:47:42.909  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ Handling launch of ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}}
03-26 19:47:42.910  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}}: app=android.app.Application@e7e4aa1, appName=dictor.win.com.windictor, pkg=dictor.win.com.windictor, comp={dictor.win.com.windictor/dictor.win.com.windictor.SignIn}, dir=/data/app/dictor.win.com.windictor-1/base.apk
03-26 19:47:43.005  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ Performing resume of ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}}
03-26 19:47:43.005  27780-27780/dictor.win.com.windictor D/ActivityThread﹕ ACT-AM_ON_RESUME_CALLED ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}}
03-26 19:47:43.005  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ Resume ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}} started activity: false, hideForNow: false, finished: false
03-26 19:47:43.009  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ Resuming ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}} with isForward=true
03-26 19:47:43.009  27780-27780/dictor.win.com.windictor V/ActivityThread﹕ Scheduling idle handler for ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}}
03-26 19:47:43.010  27780-27780/dictor.win.com.windictor D/ActivityThread﹕ ACT-LAUNCH_ACTIVITY handled : 0 / ActivityRecord{34610d7c token=android.os.BinderProxy@956b605 {dictor.win.com.windictor/dictor.win.com.windictor.SignIn}}
03-26 19:47:43.594  27780-27780/dictor.win.com.windictor D/ActivityThread﹕ ACT-DESTROY_ACTIVITY handled : 1 / android.os.BinderProxy@2e9a90ab
03-26 19:47:45.878  27780-27780/dictor.win.com.windictor V/TextView﹕ stopSelectionActionMode()
03-26 19:47:48.552  27780-27780/dictor.win.com.windictor D/ActivityThread﹕ hoder:android.app.IActivityManager$ContentProviderHolder@b16f3ef,provider,holder.Provider:android.content.ContentProviderProxy@10f2defc

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在日志中搜索

致命的
。日志中没有显示任何内容。请检查是否选择了正确的进程和设备。。