I've been getting that message for days, too. I checked the CRA site and it shows electronic services are available, but TurboTax still won't let us file?

@kalipka1 TurboTax with CRA has been working on fixing this issue. 

@cls4  Auto-Fill My Return is still not available, however customers have been able to successfully NetFile as of last night. Please try again to NetFile your return and let us know if you are successful.

Thank you for choosing TurboTax