android一个纠结的VFY错误

08-16 09:06:45.018: W/dalvikvm(2286): VFY: unable to resolve static method 3273: Lorg/slf4j/LoggerFactory;.getLogger (Ljava/lang/Class;)Lorg/slf4j/Logger;
08-16 09:44:13.617: W/dalvikvm(4731): VFY: unable to resolve static method 2649: Lcom/nostra13/universalimageloader/core/ImageLoader;.getInstance ()Lcom/nostra13/universalimageloader/core/ImageLoader;

纠结了一夜，解决办法： buildpath->Order and Export->select All