Hi,
In addition to the answers provided by Igor and Gautam, can you check the threads below? They may help you further investigating this:
http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/p/192686/689195.aspx
http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/131771.aspx
http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/209005/739744.aspx
I recall having some trouble in the past to connect to this board due not only to jumper configurations, but also with proper power to the circuits (in my case, I was trying to use an external emulator but it required to power up the isolation circuits via USB). Therefore please be sure you carefully inspect the jumper and power configurations of your development kit - maybe something changed during your development.
Hope this helps,
Rafael