I got this no class def error: org.ksoap2.serialization.SoapObject error ever since I have updated Eclipse ADT Plug in and SDK Manager. I was using ksoap2
org.ksoap2.serialization.SoapObject
ksoap2
Go to Properties -> Java Build Path
Add ksoap2-android-assembly-2.6.2-jar-with-dependencies.jar as external jar
Go to the Order and Export tab on the same popup window
Check the box against the newly added jar
(see: NoClassDefFoundError - Eclipse and Android)