[Discuss-gnuradio] Pre-cog Simple MAC Error

[GNU radio]

Hello 

I am using the Pre-cog library for sending a simple data file from one usrp N210 to another USRP N210. I have replaced the TCP Block with a file source and a stream to blob block in the GRC. 

When I disable the ARQ, I get the following error. 

Uhandler caught exception: in method 'gr_block_gw_message_type_work_args_return_value_set', argument 2 of type 'int'

Traceback (most recent call last):

  File "/usr/lib/python2.7/dist-packages/gnuradio/extras/block_gateway.py", line 53, in eval

    try: self._callback()

  File "/usr/lib/python2.7/dist-packages/gnuradio/extras/block_gateway.py", line 124, in __gr_block_handle

    ) for i in self.__out_indexes],

TypeError: in method 'gr_block_gw_message_type_work_args_return_value_set', argument 2 of type 'int'

thread[thread-per-block[16]: <gr_block mod_pkts2 (19)>]: caught unrecognized exception

I have attached the python script with this email.

Regards

Abid

simple_trx_data.py
Description: Binary data