Required argument 'data_rate_n' (pos 9) not found

[fpgasdr]

hi,
I was able to run the gr-dab in the gnuradio live to be sure the environment is correct but still have this issue when running the transmitter example:

File "/home/ubuntu/src/gr-dab/examples/top_block.py", line 122, in init
self.dab_fib_source_b_0 = dab.fib_source_b(1, 1, "jfkldsa", '', "fdsas", 1, 2, 14)
File "/usr/local/lib/python2.7/dist-packages/dab/dab_swig.py", line 8843, in make
return _dab_swig.fib_source_b_make(*args, **kwargs)
TypeError: Required argument 'data_rate_n' (pos 9) not found

The argument data_rate in FIB_source block is not taken correctly while the value is there(14).

what I'm doing wrong?.