NoClassDefFoundError when running app on Samsung device but not when running on an emulator

Question

When I test my app on an emulator, (Nexus One API 21) it runs smoothly without fail. However, when I test the app on my own personal phone(Samsung Galaxy S5,Android version 5.0,also API 21), it crashed with a NoClassDefFoundError. This error occurs at a part of the code where I am using an external library from a jar file.(jaudiotagger) Could it be that my own android phone does not have the jdk to support the library? How do I resolve that?

Answer 1

• First go to "Properties" of the project.
• then select "Java Build Path"
• after that select "Order and Export" Tab
• You should see the selected project's "src" and "gen" paths and dependencies here.
• The order how they listed were first "src" and then "gen" path
• Switch them, so that "gen" folder is build before the "src"

try it but I am not sure whether it will help you :/ In my case worked