Java.lang.NullPointerException: отсутствует необходимое представление с идентификатором: ⇐ Android

[Anonymous]

Android Studio 3.6

in app/build.gradle:

android { viewBinding.enabled = true Here my xml:

and another xml the unclude prev. xml:

here my activity:

override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = QrBluetoothSwipeActivityBinding.inflate(layoutInflater) setContentView(binding.root) } the app is build and run. Nice.

Now I move id - android:id="@+id/bluetoothBottonMainContainer"

to outer container like this:

app is build, but when run I get runtime error in this line:

binding = QrBluetoothSwipeActivityBinding.inflate(layoutInflater) error:
10-25 11:11:51.290 E/AndroidRuntime(14128): FATAL EXCEPTION: main 10-25 11:11:51.290 E/AndroidRuntime(14128): Process: com.myproject.debug, PID: 14128 10-25 11:11:51.290 E/AndroidRuntime(14128): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myproject.debug/com.myproject.ui.actviity.QRBluetoothSwipeActivity}: java.lang.NullPointerException: Missing required view with ID: bluetoothBottonMainContainer 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.ActivityThread.-wrap11(ActivityThread.java) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.os.Handler.dispatchMessage(Handler.java:102) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.os.Looper.loop(Looper.java:148) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.ActivityThread.main(ActivityThread.java:5417) 10-25 11:11:51.290 E/AndroidRuntime(14128): at java.lang.reflect.Method.invoke(Native Method) 10-25 11:11:51.290 E/AndroidRuntime(14128): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 10-25 11:11:51.290 E/AndroidRuntime(14128): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 10-25 11:11:51.290 E/AndroidRuntime(14128): Caused by: java.lang.NullPointerException: Missing required view with ID: bluetoothBottonMainContainer 10-25 11:11:51.290 E/AndroidRuntime(14128): at com.myproject.databinding.BluetoothBottomContainerBinding.bind(BluetoothBottomContainerBinding.java:114) 10-25 11:11:51.290 E/AndroidRuntime(14128): at com.myproject.databinding.QrBluetoothSwipeActivityBinding.bind(QrBluetoothSwipeActivityBinding.java:76) 10-25 11:11:51.290 E/AndroidRuntime(14128): at com.myproject.databinding.QrBluetoothSwipeActivityBinding.inflate(QrBluetoothSwipeActivityBinding.java:62) 10-25 11:11:51.290 E/AndroidRuntime(14128): at com.myproject.databinding.QrBluetoothSwipeActivityBinding.inflate(QrBluetoothSwipeActivityBinding.java:52) 10-25 11:11:51.290 E/AndroidRuntime(14128): at com.myproject.ui.actviity.QRBluetoothSwipeActivity.onCreate(QRBluetoothSwipeActivity.kt:31) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.Activity.performCreate(Activity.java:6251) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 10-25 11:11:51.290 E/AndroidRuntime(14128): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 10-25 11:11:51.290 E/AndroidRuntime(14128): ... 9 more 10-25 11:11:51.291 W/ActivityManager( 780): Force finishing activity com.myproject.debug/com.myproject.ui.actviity.QRBluetoothSwipeActivity 10-25 11:11:51.307 I/Icing (11529): Indexing done com.google.android.gms-apps

Источник: https://stackoverflow.com/questions/585 ... ew-with-id