There are a couple questions you could have answered wrong under My Info or Personal Info. Go back to My Info or Personal Info and click Edit by Dependents and then Edit by their name. Check the birthdate and make sure you have entered their ssn.
Or the one that says did your CHILD pay for most of their living expenses? Answer NO, it's not asking if you did.
If you can't get your child to qualify try completely deleting him and then re-add him. That sometimes will clear something out.
If your child was born during the year (even on Dec 31) is considered to have lived with you all year. When it asks about how long they lived with you, be sure to answer all year (pick the top box for the Whole Year). You will have to have their SS# before you can file.
Check and make sure you didn't accidentally check the box that says you (or your spouse) can be claimed as a dependent on someone else's return. You can't claim any dependents if you (or your spouse) is a dependent. People are saying that if you transferred from last year then one of the spouses came over with it checked that you can be claimed.
