Why won't my AGI from 2017 tax return work when i e-file?

[Kat]

There may be several different reasons, such as amending a return, etc.

To find your 2017 AGI that the IRS will recognize, use the IRS webpage linked below to obtain a transcript (abbreviated version) of your 2017 return.  That transcript will contain your 2017 AGI so you can complete your e-filing.

https://www.irs.gov/individuals/get-transcript