I had the same problem, which was arose from having tried to create a new Roth IRA in 2021 before a salary increase put income over the $140,000 limit. Getting out of that mess required transferring the money in the Roth IRA into a Traditional IRA early this year, and turning that back into what's called a "backdoor Roth," on the advise of an advisor. The instructions I was given for that did not work, and I came to the "foreign country code should have a value" roadblock. After almost giving up, I tried quitting and re-opening the return and found myself trying to fix another problem in a 1099-R which lacked an entry in Line 7. Instructions there explained that sometimes Line 7 is not filled out, and listed a large number of possible entries. I picked code 5, which mentioned disallowed activity). Doing that satisfied Turbotax, and I was able to get through the return without an error.
Sorry I can't give clear instructions, but this is like trying restart a stalled car; you try a number of things and by the time it starts running you've lost track of exactly what you did. The process asked me to refill entries in a 1099-R and when I did I noticed errors in spelling of the street and town. so that may have played a role. The download version of Turbotax Home and Business included help that helped me.
