[Discuss-gnuradio] undefined symbol:fftwf_execute

Dear all,

I am trying to implement cross correlation block using fftw library. I follow the correlation example in the gr-lte. when I try to run the block I get the following error: importError: /usr/local/lib/libgnuradio-my_xcorr.so: undefined symbol: fftwf_execute

I have fftw installed.

Any help?

Regards,

Saran