导航错误 - 此导航图未引用任何布局文件？

问：

我正在尝试将功能应用于我的项目。navigation

我有这个错误：

This navigation graph is not referenced to any layout files(expected to find it in at least one layout file with a NavHostFragment with app:navGraph="@navigation/@navigation" attribute

<?xml version="1.0" encoding="utf-8"?>
<navigation 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:id="@+id/navigation"
    android:label="fragment_init"
    app:startDestination="@id/initFragment"
    >

    <fragment
        android:id="@+id/initFragment"
        android:label="fragment_init"
        tools:layout="@layout/fragment_init">
        <action
            android:id="@+id/action_initFragment_to_authenticationFragment5"
            app:destination="@id/authenticationFragment"
            />
        <action
            android:id="@+id/action_initFragment_to_settingFragment3"
            app:destination="@id/settingFragment" />
    </fragment>
    <fragment
        android:id="@+id/authenticationFragment"
        android:name="com.example.AuthenticationFragment"
        android:label="fragment_authentication"
        tools:layout="@layout/fragment_authentication" />
    <fragment
        android:id="@+id/settingFragment"
        android:name="com.example.view.main.fragment.SettingFragment"
        android:label="SettingFragment"
        tools:layout="@layout/fragment_setting" />
</navigation>

我在这里和那里添加了该属性（导航和片段）。还有，在导航 .xml 中使用的布局文件夹中的布局文件。但没有用。

这是activity_main.xml

<?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:background="#000"
    android:tint="#555"
    tools:context=come.example.view.main.MainActivity">

    <ImageView
        android:id="@+id/iv_flame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_centerInParent="true" />

    <fragment
        android:id="@+id/nav_host_fragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:navGraph="@navigation/navigation"/>
</RelativeLayout>