I think there are a lot of unspoken assumptions being made here. First we need to clarify some things because your question is not clear.
1. Is the program telling you that you can be claimed, or did you try to e-file and the IRS rejected it because you were already claimed by someone else?
2. How old are you, where do you live most of the time, are you in school full time, and what is your taxable income?
(If you were correctly claimed, there is nothing you can do about it except change your answer and e-file. If you were incorrectly claimed, you can print your return as-is and mail it. To know if you were correctly claimed, we need the answers to those questions.)
