A required meta-data tag in your app's AndroidManifest.xml does not exist. You must have the following declaration within the <application> element: <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
로그를 읽는 버릇을 들이셔야죠
<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" /> 를 andorid manifest 에 넣으세요