it gives me error when adding a image to drawble folder

i have attached the screenshot of error.my image file name is Vi.
why it gives me an error ?

The error message is pretty clear, isn't it? The file name contains a character that is not allowed - the message even tells you which characters you can use.

k.
I have renamed it to vi.but it doesn't show me the image on screen?

Sounds like there's a bug in the code that's supposed to display the image.