You cannot e-file your 2017 tax return, you have to print and mail your 2017 tax return. You also cannot use TurboTax Online software for 2017 you will need to download the 2017 tax software. Please see this FAQ for additional information:
https://ttlc.intuit.com/replies/3301770
https://ttlc.intuit.com/replies/3300041
