Please double-check that your personal information matches what the CRA has on file for you. Ex: SIN, DOB, name, address, and marital status. 
Sign in to your CRA "My Account" to verify your information. If the information is the same, contact the CRA at 1-800-959-8281, as this error is generated by CRA. 

How do I fix NETFILE error code N1?

Thank you for choosing TurboTax.

I have the same problem.  Called CRA verified all information is correct. At this point I am wondering if its a turbo tax issue!