Caused By: java.net.MalformedURLException
You need to use a real URL, not this:
private static String url_all_directories = "a_web_url";
You can start with the tutorial's suggested URL: http://api.androidhive.info/music/music.xml
Hey! You sneakily changed your LogCat.
Anyway, now the problem is an image URL:
at com.app.android.library.ImageLoader.getBitmap(ImageLoader.java:70)
Check the data at "a_web_url", which is apparently on a server of yours...