Riolu won't evolve

[Former user]

So I caught a rioulu and trained it to 63 but it won't evolve.I thought maybe it was a glitch and got another rioulu and did the same with a soothe bell but it still wouldnt evolve. I also checked and it says that riolu loves nothing more than being with Kazer (my character)

[Trent]

having the same issue here.