Error in Message Log

I followed a tutorial from Unreal Engine and I followed everything perfectly (at least I think I did), but for some reason an error occured. Message log: Accessed None ‘CallFunc_GetPlayerCharacter_ReturnValue’ from node (Result) in graph ‘Transition’ in blueprint (Blueprint).
Here’s a photo:

Could someone tell me what I’m doing wrong?
Also, if you need it, here’s the tutorial link: https://docs.unrealengine.com/latest/INT/Gameplay/HowTo/CharacterMovement/Blueprints/AnimBlueprint_Walk/index.html

In the event graph of the animBP create a getPlayerCharacter → CastTo(yourCharacterBPName) and then right click on the blue return pin and promote to a variable called myChar

Then replace GetPlayerCharacter in that picture with myChar and then drag off it to get character movement.

Does your character have a chararcter movement componnent?

Does it work?

Do you only get 1 or hundreds? If its only 1 its because it takes a frame to get the character so you could use a delay of getworlddeltaseconds * 2 node if you really want that error gone.

Hope this helps
Don’t forget to accept an answer that best clears your question up or answers it so when the community finds your question in the future via search/google they know exactly what you did to fix it/get it going.

When I get the Cast To node, should it be the Blueprint class or the Animation blueprint? Right now, the only one the shows up is the Blueprint class. Also, when I right click on the return pin and promote to a variable, all it does is create a new set value. The error doesn’t bother me, but I just wanted to know if it was changing anything that important. Also, the error comes up 4 times.