Build com erro ao iniciar o app

Ola Bom dia! Estou tendo o problema ao iniciar o aplicativo, apresentando erro de build. AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.bruno.agenda">

    <application
        android:allowBackup="true"
        android:fullBackupContent=""
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.Agenda">
        <activity android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
    </application>

</manifest>

Por favor poderia me ajudar no que possa ser? Obg!

Corrigido colando desta forma no AndroidManifest

android:fullBackupContent="true"