How do you evolve Espeon?
Is it correct that you buddy an Eevee for 10 km and then - while still your buddy - evolve it in the daytime?
Thanks!
Update 9/7: It worked! Got a fine Espeon with C/FS; decent IV's, powered up to level 31. (Now I'm going for a third one for my t3 solo attempts.)
Answers
Then you did something wrong like not evolving it while it was still your Buddy.
Having evolved four and working on my 5th, most of my walking takes place during the night and I can still evolve Espeon. Just Buddy up with your best eevee, walk 10K for the two candies, and then evolve during daylight hours (within the game) for a Espeon while still being in "buddy" mode.
Just last week I hit 10K for my Eevee at 3am, and I waited to 7am to evolve it. So the checklist is, you got two eevee candies (10K), it's daytime within the game (or Night if you want a Umbreon), and you keep the same eevee you walked as your buddy and evolve it while its still your buddy.
You can actually change to a new buddy after completing the 10km and 2 candy requirement. As long as you make it your buddy again before evolving, it will still work. (In case you want to save the evolution and dex entry for a lucky egg, or maybe you conplete the distance but need to wait till the next day or night to evolve.)