I can't see the particle system?

Hello Everyone.

I am new to particle system.

I want to add a particle system in my application so, I just add a particle system. Then I move the particle system little bit near to camera in 3D workspace. I convert the shape to box. I can see the particles in the scene view and also in the game view when I am not playing. But when I hit the start button particle suddenly disappeared. When playing I can see the particle in the scene view but not in game view. When playing I notice a particle system box is in the bottom-right side I also notice that when I select the particle system gameobject the box have changing value and the particle are flowing in the scene view. I think when I build the application the bug shouldn't be there but it is there. PLEASE HELP ME....