facebook login sdk throws Application ID cannot be Null

Question

The facebook SDK throws me an error Application ID cannot be Null.

When debugging I noticed the application doesn't retrieve the metadata tag value I added under the AndroidManifest.xml file in my project directory under the 'application' tag

metadata tag:

<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="6xxxxxxxxxxxxxx"/>

Answer 1

Mt bad... I forgot to add the <activity android:name="com.facebook.LoginActivity" /> tag to the manifest file.