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Re: [Discuss-gnuradio] Blocks missing when trying examples in Gnuradio C
Re: [Discuss-gnuradio] Blocks missing when trying examples in Gnuradio Companion
Wed, 18 Jan 2012 19:32:36 -0500
On Wed, Jan 18, 2012 at 4:17 PM, radius <address@hidden>
I am trying to run some of the examples that are located
Problem: when trying to open dpsk_loopback.grc i get these errors -->
>>> Error: Block key "blks2_dxpsk_mod" not found in Platform - grc(GNU
>>> Error: Block key "blks2_dxpsk_demod" not found in Platform - grc(GNU
>>> Error: Connection between blks2_dxpsk_mod_0(0) and
blks2_dxpsk_demod_0(0) could not be made.
source block id "blks2_dxpsk_mod_0" not in block ids
>>> Error: Connection between blks2_dxpsk_demod_0(0) and
blks2_packet_decoder_0(0) could not be made.
source block id "blks2_dxpsk_demod_0" not in block ids
>>> Error: Connection between blks2_packet_encoder_0(0) and
blks2_dxpsk_mod_0(0) could not be made.
sink block id "blks2_dxpsk_mod_0" not in block ids
Also, I tried some of the examples that Alex Csete has provided. For
instance when I try the am_rx.grc example downloaded from here
https://github.com/csete/gnuradio-grc-examples/blob/master/receiver/am_rx.grc I get these errors -->
>>> Error: Block key "usrp_simple_source_x" not found in Platform -
grc(GNU Radio Companion)
>>> Error: Connection between usrp_src(0) and xlating_fir_filter(0)
could not be made.
source block id "usrp_src" not in block ids
It looks like I have something similar installed here
It also complains about not finfing usrp_simple_source_x
When i do a locate with an updated db on that I cannot find this xml on
the system at all.
About my setup:
*I run Ubuntu 10.04 LTS on an Intel box with 3GB RAM and a 128GB SSD
disk. Ubuntu is updated via update manager. The install is stable.
*I have no gnuradio packages installed via Synaptic Package Manager
*To install the newest version of gnuradio from GIT I ran the script
located here http://www.sbrac.org/files/build-gnuradio
The process went fine with no errors or warnings
*NOTE: I do not have an USRP connected. I run the Funcube dongle.
*My GRC blocks are installed here
It looks like I may miss one or several components. Do you have any
hints about what might have gone wrong?
I see there are two versions. One non UHD and one UHD. I dont know what
that means since I am a newcomer to Gnuradio.
Hope you can help-
It looks like you might have a version mismatch between two programs. As of 3.5, we moved all digital modulation-related blocks into gr-digital, see:
You'll import these using "from gnuradio import digital" and follow your nose from there. There may be a few constructor argument changes, but they should be pretty obvious.