Android Eclipse NoClassDefFoundError for external .jar files

Question

I have come across a strange error. I have an Android project that uses external libraries, in particular:

• android-support-v4.jar (for Fragment support in Andr

Answer 1

If you see NoClassDefFoundError after upgrading to ADT 22, try this in Eclipse:

• Go to Project Properties → Java Build Path → Order and Export tab.
• Check the Android Private Libraries option.