implementation ‘com.google.firebase:firebase-ads:17.0.0’ 로 버전 업데이트 발생되는 오류

implementation ‘com.google.firebase:firebase-ads:17.0.0’ 로 버전 업데이트 후 발생한 오류인데

오류가 발생하면 앱이 실행되지 않고 죽는다. 

10-23 09:54:41.720 4621-4621/? E/AndroidRuntime: FATAL EXCEPTION: main

    Process: ddolcatmaster.finedustrecord, PID: 4621

    java.lang.RuntimeException: Unable to get provider com.google.android.gms.ads.MobileAdsInitProvider: java.lang.IllegalStateException: 

    ******************************************************************************

    * The Google Mobile Ads SDK was initialized incorrectly. AdMob publishers    *

    * should follow the instructions here: https://goo.gl/fQ2neu to add a valid  *

    * App ID inside the AndroidManifest. Google Ad Manager publishers should     *

    * follow instructions here: https://goo.gl/h17b6x.                           *

    ******************************************************************************

        at android.app.ActivityThread.installProvider(ActivityThread.java:5571)

        at android.app.ActivityThread.installContentProviders(ActivityThread.java:5163)

        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5103)

        at android.app.ActivityThread.access$1600(ActivityThread.java:177)

        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1510)

        at android.os.Handler.dispatchMessage(Handler.java:102)

        at android.os.Looper.loop(Looper.java:145)

        at android.app.ActivityThread.main(ActivityThread.java:5951)

        at java.lang.reflect.Method.invoke(Native Method)

        at java.lang.reflect.Method.invoke(Method.java:372)

        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)

        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)

     Caused by: java.lang.IllegalStateException: 

    ******************************************************************************

    * The Google Mobile Ads SDK was initialized incorrectly. AdMob publishers    *

    * should follow the instructions here: https://goo.gl/fQ2neu to add a valid  *

    * App ID inside the AndroidManifest. Google Ad Manager publishers should     *

    * follow instructions here: https://goo.gl/h17b6x.                           *

    ******************************************************************************

        at com.google.android.gms.internal.ads.atr.attachInfo(Unknown Source)

        at com.google.android.gms.ads.MobileAdsInitProvider.attachInfo(Unknown Source)

        at android.app.ActivityThread.installProvider(ActivityThread.java:5568)

        … 11 more

해결 책 :

dependencies {
    implementation 'com.google.android.gms:play-services-ads:17.0.0'
}

build.gradle 파일에 아래 내용 추가한다. ( 없다면....)

allprojects {
    repositories {
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}

AndroidManifest.xml 파일에 아래 내용을 추가해줘야 한다.

<manifest>
    <application>
        <!-- Sample AdMob App ID: ca-app-pub-3940256099942544~3347511713 -->
        <meta-data
            android:name="com.google.android.gms.ads.APPLICATION_ID"
            android:value="[ADMOB_APP_ID]"/>
    </application>
</manifest>

또는 

<manifest>
    <application>
        <meta-data
            android:name="com.google.android.gms.ads.AD_MANAGER_APP"
            android:value="true"/>
    </application>
</manifest>

둘다 되는데, 정확하게 왜 구분해 둔건지 모르겠다.

https://developers.google.com/admob/android/quick-start#update_your_androidmanifestxml