[Discuss-gnuradio] No module named RPCConnectionThrift

when I am working on python simple_copy_controller.py 127.0.0.1 <PORT> true,

it shows the following error:-

root@pglab1-HCL-Desktop:/home/pglab1/gnuradio/gr-blocks/examples/ctrlport# python simple_copy_controller.py 127.0.0.1 9090 true

Traceback (most recent call last):

File "simple_copy_controller.py", line 16, in <module>

radiosys = GNURadioControlPortClient(argv=argv, rpcmethod='thrift')

File "/usr/local/lib/python2.7/dist-packages/gnuradio/ctrlport/GNURadioControlPortClient.py", line 117, in __init__

from gnuradio.ctrlport.RPCConnectionThrift import RPCConnectionThrift

ImportError: No module named RPCConnectionThrift

How can I correct this error?

RensiSam