Your 26 year-old is not able to be claimed if she made more then $4,050 during the year.
Otherwise, you have incorrectly answered one or more of the dependent questions. Return to the Personal info tab, and edit each one to review your answers. Most commonly, when people see the question asking if the child provided more then 1/2 their own support, they answer Yes, thinking the question is asking if the parents provided over 1/2 of support. The other common error lies in answering how long the child lived with you. Time spent away at school is considered as time living with you.
Read the questions carefully as you go through.
