Zedboard with Xilinx SDK

As we are running simple Hello world program on Xilinx SDK, getting following error:
 

14:18:55 INFO : Unable to read in MSS file C:\Users\csioci\workspace\Devendra_bsp\system.mss : null

14:18:55 ERROR : Failed to closesw "C:/Users/csioci/workspace/Devendra_bsp/system.mss"

Reason: Cannot close sw design 'C:/Users/csioci/workspace/Devendra_bsp/system.mss'.

Design is not opened in the current session.

How to fix this problem.