Forum: GNU Radio Error in executing filtering example

Hi all,I was simulating filtering.grc example fromDigital Modulation 
Primer using GNU Radio by Tom Rondeau.However during execution it gives 
following error. Can anybody help it out.
Executing: "/home/ehsan/mygn/filtering.py"
Traceback (most recent call last): File "/home/ehsan/mygn/filtering.py", 
line 119, in <module>  tb = filtering() File 
"/home/ehsan/mygn/filtering.py", line 83, in __init__ 
self.fft_filter_xxx_0 = filter.fft_filter_ccc(1, (), 1) File 
"/usr/local/lib/python2.7/site-packages/gnuradio/filter/filter_swig.py", 
line 677, in make  return _filter_swig.fft_filter_ccc_make(*args, 
**kwargs)RuntimeError: fft_impl_fftw: invalid fft_size
>>> Done
With RegardsG R Begh

On Fri, Feb 1, 2013 at 12:00 AM, Ghulam Rasool Begh 
<grbegh136@yahoo.com>wrote:

>   File "/home/ehsan/mygn/filtering.py", line 83, in __init__
> G R Begh
>

Can you tell us what you were doing when you go this error? Was it 
running
at all?

Tom