unresolved_translation
What happened
A conversion lists the parts of the source that have no direct Forge equivalent. Confirming the spec is refused with 409 while any of them has no decision recorded.
What to do
Go back to the chat and answer each part it asks about, then confirm again.
Example
json
{
"error": "Some parts of the uploaded source need your answer before this spec can be confirmed \u2014 go back to the chat.",
"code": "unresolved_translation"
}