[Discuss-gnuradio] AttributeError: 'module' object has no attribute 'block_name'

[Mostafa Alizadeh]

Hello all, 

I've just created a block called "sliding_fft". The _impl.h file looks like: 

#include <gnuradio/fft/fft.h>

namespace gr {

  namespace lte_dl_rx {

    class sliding_fft_impl : public sliding_fft

    {

     private:

        fft::fft_complex *d_fft;

        uint d_fft_size;

        uint count;

     public:

      sliding_fft_impl(uint fft_size);

      ~sliding_fft_impl();

      // Where all the action really happens

      int work(int noutput_items,

      gr_vector_const_void_star &input_items,

      gr_vector_void_star &output_items);

    };

  } // namespace lte_dl_rx

} // namespace gr

and the _impl.cc looks like: 

   /*

     * The private constructor

     */

    sliding_fft_impl::sliding_fft_impl(uint fft_size)

      : gr::sync_block("sliding_fft",

              gr::io_signature::make(1, 1, sizeof(gr_complex)),

              gr::io_signature::make(1, 1, fft_size*sizeof(gr_complex))),

        d_fft_size(fft_size),

        count(1)

    {

        d_fft = new fft::fft_complex (fft_size, 1, 1);

        set_history(fft_size);

    }

There is no attribute problem till I don't use the "d_fft = new fft::fft_complex (fft_size, 1, 1);" line in the constructor! 

After working a lot, I got the attribute error in grc is due to this line! 

Please help me why this is happening ?

Thank you kindly, 

Mostafa