java.lang.AbstractMethodError: abstract method not implemented

[zhouxuemeng1988]

java.lang.AbstractMethodError: abstract method not implemented
at com.github.florent37.picassopalette.PicassoPalette.onError(PicassoPalette.java)
at com.squareup.picasso.ImageViewAction.error(ImageViewAction.java:72)
at com.squareup.picasso.Picasso.deliverAction(Picasso.java:581)
at com.squareup.picasso.Picasso.complete(Picasso.java:528)
at com.squareup.picasso.Picasso$1.handleMessage(Picasso.java:122)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5030)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:832)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:648)
at dalvik.system.NativeStart.main(Native Method)