Hi, thank you your post into the forum.
Sorry you're having trouble working with SQL Source Control.
The issue you're hitting sounds like a bug that we had in a previous version of the SQL Server Integration pack. Could you perform a 'help > check for updates' in both SQL Source Control and SQL Compare and make sure you're on the latest versions? If you are not on the latest versions can you please upgrade?
If that doesn't help, you should be able to to the deployment if you configure it through the SQL Compare user interface rather than setting up through SSMS.
If you have any issues with the update service here are the links to the current versions:
SQL Compare V10.2.3.1
SQL Source Control V18.104.22.16829