Though I delete the "{}" braces but it still occurs.
<provider
android:name="com.facebook.FacebookContentProvider" android:authorities="com.facebook.app.FacebookContentProvider{facebook_app_id}"
android:exported="true" />
The format shoud be: android:authorities="com.facebook.app.FacebookContentProvider0123456789"
, where 012345678
is your Facebook app ID
. Use it without the {
character. So your provider
tag should be:
<provider
android:authorities="com.facebook.app.FacebookContentProvider0123456789"
android:name="com.facebook.FacebookContentProvider"
android:exported="true"/>
However, if you accidently have already used the {
character, then you will be most likely facing an Android Studio bug as it is reported here. The problem is that you are trying to edit the wrong manifest. The poped up manifest from Android Studio build message is not the application's manifest.
So simply open your application's manifest and you can edit it without problem.