I added the character but it doesn't move... Neither with mouse clicks nor keyboard clicks... in the layout viewer. I can't figure out the error. When I click to play the game, it doesn't work either.
As per the Forum & Community guidelines, please only post in English. I used Google Translate on your post. See also this post - it is difficult for anyone to help you without more information.
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You probably didn't add any movement behavior to your object. Try adding either the 8 direction, tiled movement, or platformer behavior.
Reading the manual and following the guides and tutorials helps too.
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