I am following this tutorial on libgdx. What i am trying to do is loading a texture from a copy of badlogic.jpg (copy is called wawa.jpg):
public class HelloWorl
I also had the same problem, but my mistake was a file name error.
The file was called gameScreenshot.PNG, and I had put in the string as "gameScreenshot.png".
In Windows it accepted the file name fine, but on android it didn't work, so I had to rename it to "gameScreenshot.PNG"
solved: i didn't put the new texture into the "assets" folder of android project