Useless parent layout how to resolve this error?

Question

Android

Faced such a problem, 3 errors appeared in the activiti_main.xml file. What needs to be changed?
Error text:
Error #1 and 2
This LinearLayout l ayout or its RelativeLayout parent is possibly useless A layout with children that has no siblings, is not a scrollview or a root layout, and does not have a background, can be removed and have its children moved directly into the parent for a flatter and more efficient layout hierarchy. Issue id: UselessParent
Error #3
This ScrollView layout or its LinearLayout parent is possibly useless A layout with children that has no siblings, is not a scrollview or a root layout, and does not have a background, can be removed and have its children moved directly into the parent for a flatter and more efficient layout hierarchy. Issue id: UselessParent

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="10dp"
    tools:context=".MainActivity">

    <LinearLayout
        android:id="@+id/container1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:orientation="vertical">

        <LinearLayout
            android:id="@+id/container2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="10dp">

            <ScrollView
                android:id="@+id/scroll"
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <LinearLayout
                    android:id="@+id/container3"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical">

                    <TextView
                        android:id="@+id/textView"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="@string/Marhut2"
                        android:textAlignment="center"
                        android:textColor="#000000"
                        android:textColorHint="#777777"
                        android:textSize="18sp"
                        android:textStyle="bold" />

This is not the whole code, because it did not fit.

Answer 1

It's a warning, basically. You need to remove extra layouts, there is no point in nesting them into each other if there are no other children.