Error initializing emulator: No USB FET was found

Hi

I am using MSP430FG4618 Target board .I was trying to load my exe files using MSP430 USB-Debug-Interface(MSP430 -FET430UIF).I was getting the following error:

"Error initializing emulator:No USB FET was found ".I have installed CCSV4 4.2.4. version in windows 7-32 bit.

Note:The same Target board and USB Debug Interface was working fine with CCSV5.1.0 .I have loaded exe files using the same FET430UIF.

I would appreciate it if anyone could help me resolve this problem.

Best Regards,

VASANT