Conversion to Dalvik format failed: Unable to execute dex SDK Tools 22.3

Question

Multiple dex files define Lcom/google/ads/AdRequest$ErrorCode

Latest ADT, Latest SDK Tools (22.3).

I Tried :

1. Clean/rebuild
2. Update Eclipse

Answer 1

*Right click on project name and select the Build Path.

*Then select Configure Build Path.

*From Java Build Path select the tab Order and Export.

*Uncheck the .jar libraries.

The error is generally due to multiplicity in libraries.