WARNING: Category '' in library *any library* is not valid. Setting to 'Uncategorized' I'm using Ubuntu 14.04 with arduino Galileo and the newest arduino IDE from arduino.cc and every time I compile I got this warnings with any library in place of EEPROM, SD, Wire, Wifi and a lot of others.

When I check the boards manager I got the following:

Invalid library found in /home/User/.arduino15/packages/Intel/hardware/i586/1.6.2+1.0/libraries/Wire: /home/User/.arduino15/packages/Intel/hardware/i586/1.6.2+1.0/libraries/Wire 

Anyone knows how to solve this?
Edit or add library.properties to that folder so that you specify a valid category. 

Example of library.properties:

name=WebServer
version=1.0
author=Cristian Maglie &lt;c.maglie@example.com&gt;, Pippo Pluto &lt;pippo@example.com&gt;
maintainer=Cristian Maglie &lt;c.maglie@example.com&gt;
sentence=A library that makes coding a Webserver a breeze.
paragraph=Supports HTTP1.1 and you can do GET and POST.
category=Communication
url=http://example.com/
architectures=avr