"Žofie, you are a good friend."

[DarrylMose]

"Jseš" was marked as correct, but a typo (corrected to "jsi"). Is "jseš" really not correct?

[endless_sleeper]

Jseš is very colloquial, not standard Czech.

[ClairePikachu]

I’m wondering why přítel is not acceptable?

[Jamie08MD]

Žofie is a girl's name. You need "a friend" to be also feminine (přítelkyně or kamarádka).

[Krakenfromthesea]

why is this wrong? "Žofie, jsi dobrá přítelkyně"

[VladaFu]

It isn't. I can see a report from yesterday, but it should have been accepted.

Most likely, it is a problem with the Duolingo mobile app, it sometimes does that.

It is supposed to be accepted.