Error message 417
You will see the following warning message on the ERRORS page in H&R Block's tax software if, on the Your mailing address page, you forgot to enter the name of your city or you entered it in a format that isn’t allowed by the Canada Revenue Agency (CRA):
You entered an invalid city. [error code: 417]
How do I fix this?
Enter the city you live in on the Your mailing address page. If the name of your city includes a period, keep in mind that the CRA only allows the use of a hyphen after a period when completing this field. Any other special character (like a slash) or a space aren’t allowed after the use of a period. For example, if you live in St. John’s, you can only enter it in either of the following formats:
St.Johns (no space or apostrophe)
St Johns (no period or apostrophe)
Note: You can find the Your mailing address page under About You of the Get Started tab.