Java. Lang. noclassdeffounderror: org. ksoap2.serialization. soapobject

Mobile apps developed for android2.3.3 connect to the Web
Service prompts an error as shown in the title.

Solution:

This is because the org. ksoap2.serialization. soapobject package is not included in the program, or the package is not properly configured.

1. Check whether the corresponding package is marked in Java build path --> libraries in the project properties.

2. In order and export, select the corresponding package.

3. Delete the corresponding APK under the project bin.

4. Clear the project.

5. Restart eclipse and the mobile phone.