android apk faild to build after adding a background image : **Unfortunately app stopped working ** after building apk with background image.
I am a newbie to android, I thought of developing a beginner app likely(note app in phones). It was far good till applying a background image in .xml file. after the update, the apk file failed to run in mobile. Can any one suggest where I gone wrong?
[enter image description here][1]  


  [1]: https://i.stack.imgur.com/5pfNC.jpg