can't catch Darkrai after done all the darkrealm quest

[Killermap]

After completing all Darkrai quest steps , i was teleported to the castle and talked to Darkrai to catch the poke , but after that non encounter to darkrai , i try to bring 2 pokemon know the move i need to do the quest but didn't see anything , i ask alot of people and know it  some people have same problem like me . 
Tks for reading hope i can get the reply soon 

[Igbang]

you need pkm with Miracle Eye