How do I make player stop when he collides the wall?

Hi everyone! I'm now making a platformer for mobile devices in C2 and I've got a problem: when the player hits the wall, he continues moving. How can I fix it? Here is the .caproj:

dropbox.com/s/bbfsghj8aa85dy6/Platformer.caproj

Hello there!

I tryed to downloaded this file, but that's an project file from C2, and I'm not using C2 anymore, and C3 apparently don't open project files like that one for some unknow reason.

Anyway, you could upload the single file from your project, that'shoudld be more easy to do.

Just reading what you said there, I can make a simple question.

Do you used the Solid behavior in the walls? Otherwise, the platformer behavior will have no reason to collide with this sprite.

Yes, I'm using solid for walls and platform for player. I will post the file that is supported by C3 soon. Player stops, but his animation continues.