Cannot enter a 3 digit country code only accepts 2, in principal residence sale, errors out on filing???

I am sorry to hear that you are having this problem. Which country is the code for?

Canada  It wants a three digit code which is CAN but only takes CA

I updated software and still same issue only takes 2 digit country code

To resolve this issue, please update your copy of TurboTax CD/download, as this error was fixed in an update a few weeks ago. https://turbotax.community.intuit.ca/replies/2868252

Then please contact our phone support as they will be able to assist you further: https://turbotax.community.intuit.ca/replies/3152013