I'm having the same problem ,i fixed the only error I have ,now when it linkse.to the CRA website and asks for my sin I entered correctly twice and it just says error ,and I tried to file my first return electronic via turbo tax back in March it didn't work so I had hnr block do my 2016 return for my first one ,now I'm trying to do the rest via TurboTax and it won't let me file electronically
