Third person char disappeared when start play

I started the project with a third-person-game template.and I deleted the the given 3rd-person-character and dragged a new one,the question is now when play game,my character disappeared and the camera is on 0,0,0,in outline cant see 3rd-person-character,I tried to reset the world-game-mode setting to none,and project-game-mode,tried all default pawn,either camera on 0,0,0,or camera fly to sky,all these cant see character.