Why can't I compile?

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https://docs.unrealengine.com/ko/Gameplay/HowTo/CharacterMovement/Blueprints/AnimBlueprint_Walk/index.html
in english : https://docs.unrealengine.com/en-US/Gameplay/HowTo/CharacterMovement/Blueprints/index.htmlv

I’m learning Blueprint Tutorial-Character Movement Setup. By the way, when I try to compile the contents in parts 5-15, I get an error. What should I do? . And after I found this error, I typed the contents of the tutorial to the end in anticipation that this error would be fixed if I proceeded to the end of the tutorial.

However, as shown in the three photos below, there are only new errors. After 4 hours of no results, I hope you can help me solve it.
Thank you for the reply , Thank you so much for answering.