Android: "Conversion to Dalvik format failed with error 1"

While running m开发者_StackOverflow中文版y application, I received the following error:

Android: Conversion to Dalvik format failed with error 1

trouble processing "javax/net/SocketFactory.class":

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It get fixed for me when I unchecked build automatically in eclipse (Projects-> Build Automatically).

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Either you have the source code to javax.net.SocketFactory in your project, or your build path is messed up and it is trying to include that Java class from a JAR somewhere.