“Conversion to Dalvik format failed with error 1” on external JAR

In my Android application in Eclipse I get the following error. UNEXPECTED TOP-LEVEL EXCEPTION: java.lang.IllegalArgumentException: already added: Lorg/xmlpull/v1/XmlPullParser; …. Conversion to Dalvik format failed with error 1 This error only appears when I add a specific external JAR file to my project. I searched for a long time for the possible solution, but none of … Read more