Form 1095-A has now been updated to add the dependent's AGI in the interview. TurboTax online is now updated.
If you are using TurboTax CD/Download, update your program and the error will disappear.
I am using turbotax online and it has not been updated to include interview questions about dependent income.
TurboTax Online updates automatically.
If you are having problems with the dependent questions, I recommend that you go back to the My Info section, delete that dependent and re-enter them and go through the questions again.
If that doesn't solve the problem, please clear the cookies on your browser and/or try another browser. Here is a link for help clearing the cookies on your browser: Clear Cookies on major Browsers
Here is a screenshot of the question regarding other dependents. A similar question is asked regarding the support of qualifing children.