how do I fix code a-101 on my federal return?

[lindsayberish2]

turbo tax is saying do not enter directly on the Other Additions and Subtractions statement, but enter on your federal return. where?

[MaryK4]

Look for your W2 Box 14 entry. If you do not have an entry, make sure the space is blank, not zero.

A-101: New York City flexible benefits program (IRC 125)
if you participate in a New York City flexible benefits program, IRC 125, you must report the amount deducted or deferred from your salary as an addition modification to federal AGI on line 23 of Form IT-201, Resident Income Tax Return