Api level 5 doesn’t mean you can use that method from android 5.0 and up. Android 5.0’s api level is 21 & (22 for 5.1) .
Added in Api level 5 means you can use that method from Android's Eclair / Android 2.0 and up if the method wasn’t depraceted & removed in upper versions.
Just place the blocks as directed by the developer, no more. only one button to apply the image, try from assets, url, png, jpg and always gives the same error.