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)