upgrade to Arduino: 1.8.3 [www.arduino.cc]
Check its fully up to date.
Launch the boards manager, click Tools menu, Board: and select boards mangers.
change from type all to all to Updateable, select more info on any that are updateable and click on update.
Now launch the libraries manager, click Sketch menu, Include library, select manage libraries
change from type all to updateable, select more info on any that are updateable and click on update.
Try again. As latest version worked fine for me
Check its fully up to date.
Launch the boards manager, click Tools menu, Board: and select boards mangers.
change from type all to all to Updateable, select more info on any that are updateable and click on update.
Now launch the libraries manager, click Sketch menu, Include library, select manage libraries
change from type all to updateable, select more info on any that are updateable and click on update.
Try again. As latest version worked fine for me