Go back and make sure there's no blank entry in your Dependents section. To check in an online edition:
1. Click My Info on the left-hand side menu.
2. Scroll down to the dependent.
3. Click the trash can by the one you want to get rid of.
The dependent section should be empty, if you're not claiming anyone.To check in a Desktop version:
2. Click Edit next to the name of the person you’d like to change.
3. Make any changes and click Continue.