Umm thank you for your reply. Unfortunately that does not work too . On the wiki’s guide steps that I implement to my project not work until now. Mouse clicks not launch bullet, enemy tanks not comes toward to my turret, explosions do not happen.
Why that happened have no any idea. After some tries to solve it then I found the solution. Firstly I had added all Object’s Sprite again. Then drag&drop images from Image’s bank editor to images section of Edit the Sprite panel. After all these my project’s assests worked very well.
My propasal is that adding sprite should be automated not manually.