Process: com.ukasha.firebase1, PID: 18266
com.google.firebase.database.DatabaseException: Class com.ukasha.firebase1.Student does not define a no-argument constructor. If you are using ProGuard, make sure these constructors are not stripped.
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.deserialize(com.google.firebase:firebase-database@@16.0.4:557)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper$BeanMapper.deserialize(com.google.firebase:firebase-database@@16.0.4:550)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.convertBean(com.google.firebase:firebase-database@@16.0.4:420)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.deserializeToClass(com.google.firebase:firebase-database@@16.0.4:214)
at com.google.firebase.database.core.utilities.encoding.CustomClassMapper.convertToCustomClass(com.google.firebase:firebase-database@@16.0.4:79)
at com.google.firebase.database.DataSnapshot.getValue(com.google.firebase:firebase-database@@16.0.4:212)
at com.ukasha.firebase1.CheckRecordActivity$1.onDataChange(CheckRecordActivity.java:50)
at com.google.firebase.database.Query$1.onDataChange(com.google.firebase:firebase-database@@16.0.4:183)
at com.google.firebase.database.core.ValueEventRegistration.fireEvent(com.google.firebase:firebase-database@@16.0.4:75)
at com.google.firebase.database.core.view.DataEvent.fire(com.google.firebase:firebase-database@@16.0.4:63)
at com.google.firebase.database.core.view.EventRaiser$1.run(com.google.firebase:firebase-database@@16.0.4:55)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
2020-01-20 20: 59: 29,595 1657-4961 /? E / eglCodecCommon: glUtilsParamSize: неизвестный параметр 0x00008cdf 2020-01-20 20: 59: 29.596 1657-4961 /? E / eglCodecCommon: glUtilsParamSize: неизвестный параметр 0x00008824 2020-01-20 20: 59: 35.630 1657-1689 /? E / InputDispatcher: канал '86eaf49 com.ukasha.firebase1 / com.ukasha.firebase1.MainActivity (server)' ~ Канал неисправим и поврежден и будет удален! 2020-01-20 20: 59: 35.676 1657-8254 /? E / ActivityManager: applyOptionsLocked: Неизвестный animationType = 0 2020-01-20 20: 59: 36.122 1312-1887 /? E / SurfaceFlinger: ro.sf.lcd_density должен быть определен как свойство сборки 2020-01-20 20: 59: 36.389 18314-18335 / com.ukasha.firebase1 E / eglCodecCommon: glUtilsParamSize: неизвестный параметр 0x00008cdf 2020-01-20 20 : 59: 36.389 18314-18335 / com.ukasha.firebase1 E / eglCodecCommon: glUtilsParamSize: неизвестный параметр 0x00008824 2020-01-20 21: 00: 10.778 18736-17009 /? E / WakeLock: выпуск GCM_HB_ALARM без согласованного приобретения! 2020-01-20 21: 04: 00.970 18736-17009 /? E / WakeLock: выпуск GCM_HB_ALARM без согласованного приобретения!