"저는 취미가 없습니다."
Translation:I do not have a hobby.
It's okay, there there :)
Duolingo just wants to be your hobby. He's a bit needy, but don't blame him. You guys will get there eventually.
Not having any [time for] hobbies can be the sad result of students being overworked, as high school students are in Korea.
"I have no hobbies" should be accepted, reported on Nov. 22, 2017.