Download contiki-2.7.zip from http://downloads.sourceforge.net/project/contiki/Contiki/Contiki%202.7/contiki-2.7.zip
 
Download contiki-2.7.zip from http://downloads.sourceforge.net/project/contiki/Contiki/Contiki%202.7/contiki-2.7.zip
   Exception encountered, of type "Error"