Mininet with LINC

[momina04]

Hi all,I have installed LINC successfully in mininet using instructions given here. https://github.com/FlowForwarding/LINC-Switch but whenever I run the command given below..I get PATH missing error.

~/mininet/LINC-Switch$ sudo mn --switch=linc
*** Creating network
*** Adding controller
Unable to contact the remote controller at 127.0.0.1:6633
*** Adding hosts:
h1 h2 
*** Adding switches:
Cannot find required executable linc.
Please make sure that the user-space OpenFlow LINC-Switch (https://github.com/FlowForwarding/LINC-Switch) is installed and available in your $PATH:
(/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin)

Anyone here please help me to resolve this issue..

Regards,