Please explain what I did wrong.

Did you use the card the same turn you put the Electrike?
Other than that a bug most likely

>>27369103
I would guess you played the Electrike this turn and therefore the evo soda doesn't recognize it as a valid target (which it isn't based on the final clause)

>>27369103
Did you use Evosoda in the same turn as you placed your basic Pokemon? I've done that before. It specifically says at the bottom that you can't use this card during your first turn or on a Pokemon that was put into play this turn.

The supporter card Wally does the same thing but you can evolve it on the same turn as it was placed.