Question: Looking for a good tutorial that can walk me through creating a web service application in Android. I have had difficulty finding something that is beneficial. Most of the web services I have seen are no longer existing. 

I am looking for something relatively simple. 

I found the solution on this site: 

[java.dzone.com/articles/invoke-webservices-android](http://java.dzone.com/articles/invoke-webservices-android)

If you use this : 
 Add the external jar file for the KSOAP2 Library, Go to order and export tab and check the box next to the jar file. and Finally go to project tab and hit clean. if this doesn't work for you I will try to help walk you through. It worked for me!!

Answer: 
The best web service tutorial I've seen, in terms of explanation and completness is here: <http://www.androidhive.info/2012/01/android-login-and-registration-with-php-mysql-and-sqlite/>

It outlines how to create and use a PHP based web service utilizing JSON as a message format. It includes code from all the layers (Android, PHP, MySQL)
some demo

with sample code

<http://seesharpgears.blogspot.in/2010/10/ksoap-android-web-service-tutorial-with.html>

First things first, so you should now go ahead and download the KSOAP library from Sourceforge Google code:

<http://code.google.com/p/ksoap2-android/downloads/detail?name=ksoap2-android-assembly-2.4-jar-with-dependencies.jar&can=2&q=>

<http://seesharpgears.blogspot.in/2010/11/basic-ksoap-android-tutorial.html>