Hello I am developing an android application in which for a ListView I have to added an image to drawable folder but when I am adding it is giving the error.
This is the folders hierarchy of my project
This is the image I wanna add arrow.png
This is the error
[2013-04-03 20:57:37 - FileSharing] res/drawable/arrow.png: Invalid file name: must contain only [a-z0-9_.]
I have changes the file name 10 times according to the conventions but still the error is not going