Notifications Channel Settings crash

java.lang.NoSuchMethodError: No direct method ra()V in class Lcom/android/settings/NotificationChannelSettings; or its super classes (declaration of 'com.android.settings.NotificationChannelSettings' appears in /system/priv-app/Settings/Settings.apk)
 at com.android.settings.NotificationChannelSettings.onCreate(Unknown Source:30)
 at android.app.Fragment.performCreate(Unknown Source:15)
 at android.app.FragmentManagerImpl.moveToState(Unknown Source:346)
 at android.app.FragmentManagerImpl.addAddedFragments(Unknown Source:48)
 at android.app.FragmentManagerImpl.executeOpsTogether(Unknown Source:125)
 at android.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(Unknown Source:99)
 at android.app.FragmentManagerImpl.execPendingActions(Unknown Source:21)
 at android.app.FragmentManagerImpl.executePendingTransactions(Unknown Source:0)
 at com.android.settings.kg.a(Unknown Source:238)
 at com.android.settings.kg.a(Unknown Source:41)
 at com.android.settings.kg.onCreate(Unknown Source:194)
 at android.app.Activity.performCreate(Unknown Source:16)
 at android.app.Activity.performCreate(Unknown Source:1)
 at android.app.Instrumentation.callActivityOnCreate(Unknown Source:3)
 at android.app.ActivityThread.performLaunchActivity(Unknown Source:368)
 at android.app.ActivityThread.handleLaunchActivity(Unknown Source:36)
 at android.app.servertransaction.LaunchActivityItem.execute(Unknown Source:57)
 at android.app.servertransaction.TransactionExecutor.executeCallbacks(Unknown Source:99)
 at android.app.servertransaction.TransactionExecutor.execute(Unknown Source:34)
 at android.app.ActivityThread$H.handleMessage(Unknown Source:36)
 at android.os.Handler.dispatchMessage(Unknown Source:21)
 at android.os.Looper.loop(Unknown Source:208)
 at android.app.ActivityThread.main(Unknown Source:107)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(Unknown Source:11)
 at com.android.internal.os.ZygoteInit.main(Unknown Source:274)