평가판을 처음 사용하는데 키를 입력하면 만료되었다고 오류가 뜹니다

평가판을 처음 사용하는데, 다운을 하고 키를 입력하면 만료되었다고 오류가 떠서 프로그램이 사용 불가능합니다.
어떻게 해야할까요?

Hi,

Did you have an evaluation period before?
In that case you are not allowed another period as there is only one free trial per person.

-Willem

You had an evaluation period ending on December 12th, 2021. Please visit Rhino - Buy - Rhinoceros and acquire a full license. If you are a student you could be eligable for educational discount - the page I linked you to has more information on that.