android gradle fail "AAPT: error: resource color/com_facebook_button_background_color_focused_disabled"
Make sure to use the latest Facebook SDK implementation
'com.facebook.android:facebook-android-sdk:[5,6)'
Prince's answer should work. If it does not, you can manually set the colors. Your app should build properly after doing this.
<color name="com_facebook_button_background_color_focused_disabled">#3C5A99</color>
<color name="com_facebook_button_background_color_focused">#3C5A99</color>
<color name="com_facebook_button_border_color_focused">#3C5A99</color>