Hello,

I have just installed RFNOC using the app note:
https://kb.ettus.com/Getting_Started_with_RFNoC_Development

I used the manual way because I was having some weird problems using
Pybombs and I am using X300 under Ubuntu 18.4. I can successfully use  all
the UHD commands, load FPGA with new images etc.I can also successfully use
the Gnuradio-comapnion gnuradio blocks.

But when I use gnuradio-comapnion graphs with  RFNOC blocks, it can not
find them.
Here is the error:
Loading: "/home/rfnocdev/rfnoc/gr-ettus/examples/rfnoc/rfnoc_ddc.grc"
Block key "variable_uhd_device3" not found
Block key "uhd_rfnoc_streamer_ddc" not found
Block key "uhd_rfnoc_streamer_fifo" not found
Block key "uhd_rfnoc_streamer_radio" not found


Any ideas What I am missing here.

Thanks,
Cherif
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