You will not be able to Netfile your tax return until February 24th,2020 at which time all forms from the CRA will be unlocked. Open your return on that day and proceed to file your tax return.
For a refund please review the link provided below for further assistance:
Getting: We're sorry, the Canada Revenue Agency was unable to accept your NETFILE tax return.
Checked on the CRA site - Netfile should be open now.
Looking to understand why TurboTax can't upload yet,...