Upon the successful completion of the above mentioned steps we are ready to create a simulation in Cooja.   
 
Upon the successful completion of the above mentioned steps we are ready to create a simulation in Cooja.   
 
Start the Cooja simulator using the following command  
 
Start the Cooja simulator using the following command  
 +
 
cd /contiki-2.7/tools/cooja  
 
cd /contiki-2.7/tools/cooja  
 
ant run  
 
ant run  
Exception encountered, of type "Error"