error

03-27 00:59:59.777 2484-2484/app.vindict E/AndroidRuntime: FATAL EXCEPTION: main
                                                           Process: app.vindict, PID: 2484
                                                           java.lang.NoSuchMethodError: No virtual method getNotificationChannels()Ljava/util/List; in class Landroid/app/NotificationManager; or its super classes (declaration of 'android.app.NotificationManager' appears in /system/framework/framework.jar:classes2.dex)
                                                               at com.backendless.push.PushTemplateHelper.deleteNotificationChannel(PushTemplateHelper.java:231)
                                                               at com.backendless.push.BackendlessPushService$1.handleResponse(BackendlessPushService.java:287)
                                                               at com.backendless.push.BackendlessPushService$1.handleResponse(BackendlessPushService.java:278)
                                                               at com.backendless.Messaging$2.handleResponse(Messaging.java:248)
                                                               at com.backendless.Messaging$2.handleResponse(Messaging.java:243)
                                                               at com.backendless.async.message.AsyncMessage$ResponseHandler.handle(AsyncMessage.java:64)
                                                               at com.backendless.async.message.AsyncMessage.handleCallback(AsyncMessage.java:41)
                                                               at com.backendless.core.AndroidCarrier$1.handleMessage(AndroidCarrier.java:37)
                                                               at android.os.Handler.dispatchMessage(Handler.java:98)
                                                               at android.os.Looper.loop(Looper.java:145)
                                                               at android.app.ActivityThread.main(ActivityThread.java:5951)
                                                               at java.lang.reflect.Method.invoke(Native Method)
                                                               at java.lang.reflect.Method.invoke(Method.java:372)
                                                               at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
                                                               at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)