Entering your prior year AGI is a new IRS requirement for electronically filed returns, the best way to find your AGI is on last year’s tax return, follow the instructions here: https://ttlc.intuit.com/questions/1900840-how-do-i-find-last-year-s-agi
If you still can’t resolve your e-file reject you can always print and mail your tax return(s) instead of electronic filing, you don’t need to provide your AGI to print and mail.
Entering your prior year AGI is a new IRS requirement for electronically filed returns, the best way to find your AGI is on last year’s tax return, follow the instructions here: https://ttlc.intuit.com/questions/1900840-how-do-i-find-last-year-s-agi
If you still can’t resolve your e-file reject you can always print and mail your tax return(s) instead of electronic filing, you don’t need to provide your AGI to print and mail.