Joda-Time 2.1 and Android - NoClassDefFoundError

问题

Trying to use DateTime in an Android app (API 15) but get the following in logcat:

E/dalvikvm(794): Unable to resolve Lorg/joda/time/base/AbstractInstant; annotation class 1383
D/AndroidRuntime(794): Shutting down VM
W/dalvikvm(794): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
E/AndroidRuntime(794): FATAL EXCEPTION: main
E/AndroidRuntime(794): java.lang.NoClassDefFoundError: org/joda/convert/ToString
E/AndroidRuntime(794):  at java.lang.reflect.Method.getDeclaredAnnotations(Native Method)
E/AndroidRuntime(794):  at java.lang.reflect.Method.getDeclaredAnnotations(Method.java:267)
E/AndroidRuntime(794):  at com.fasterxml.jackson.databind.introspect.AnnotatedClass._addMixUnders(AnnotatedClass.java:999)
....

I have a /libs directory and it has joda-time-2.1.jar. Am I missing something obvious?

---

I should have looked more carefully at the error stack - in particular the line: java.lang.NoClassDefFoundError: org/joda/convert/ToString

That is from the jar joda-convert, not joda-time and the joda-convert jar file was NOT in my libs directory.

Note: There doesn't seem to be any need to explicitly export the jar

回答1:

You need to add the joda-convert.jar to your libs folder. Download the jar from http://sourceforge.net/projects/joda-convert/files/joda-convert/

回答2:

You should use joda-time-android. This is jodatime library adapted for android.

来源：https://stackoverflow.com/questions/13678147/joda-time-2-1-and-android-noclassdeffounderror