Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener"

[Turtuvshin Byambaa]

at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:125) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:379) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void androidx.core.view.ViewCompat.setOnApplyWindowInsetsListener(android.view.View, androidx.core.view.OnApplyWindowInsetsListener) (ViewCompat.java:2203) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:637) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void cloud.techstar.memorize.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:24) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7009) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7000) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1214) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2731) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2856) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.app.ActivityThread.-wrap11(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1589) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:106) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.os.Looper.loop() (Looper.java:164) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6494) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) (Method.java:-2) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:438) 2018-12-19 16:04:54.463 8992-8992/cloud.techstar.memorize I/zygote64: at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:807)