Resources.load is not working in android in unity

_ManagerMain.currentLogoTexture=(Texture2D) Resources.Load(“./episode_01/audi.png”,typeof(Texture2D));

_ManagerMain.currentLogoTexture=(Texture2D) Resources.Load(“/episode_01/audi.png”,typeof(Texture2D));

_ManagerMain.currentLogoTexture=(Texture2D) Resources.Load(episode_01/audi.png",typeof(Texture2D));

_ManagerMain.currentLogoTexture=(Texture2D) Resources.Load(“Assets/episode_01/audi.png”,typeof(Texture2D));

when made build of this project in android does not work

i tried all these things but it is not get file from resources

i go solution of this problem
Resources.Load (“episode_01/bmw”);
currTexture = Resources.Load (“episode_01/bmw”); its work in this way