On Wed, Jan 18, 2012 at 4:17 PM, radius <[email protected]> wrote:
> Hi there. > > I am trying to run some of the examples that are located > at /usr/local/share/gnuradio/examples/grc/simple > > Problem: when trying to open dpsk_loopback.grc i get these errors --> > > [ > > Loading: > "/usr/local/share/gnuradio/examples/grc/simple/dpsk_loopback.grc" > > >>> Error: Block key "blks2_dxpsk_mod" not found in Platform - grc(GNU > Radio Companion) > > >>> Error: Block key "blks2_dxpsk_demod" not found in Platform - grc(GNU > Radio Companion) > > >>> 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 > > >>> Done > > ] > > 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.grcI > get these errors --> > > > [ > Loading: > > "/home/user1/mine_gnuradio_filer/csete-gnuradio-grc-examples-d7f8024/receiver/am_rx.grc" > > >>> 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 > > >>> Done > > Showing: > > "/home/user1/mine_gnuradio_filer/csete-gnuradio-grc-examples-d7f8024/receiver/am_rx.grc" > ] > > It looks like I have something similar installed here > --> > /usr/local/share/gnuradio/grc/blocks/gr_freq_xlating_fir_filter_xxx.xml > > 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 > --> /usr/local/share/gnuradio/grc/blocks/ > > Questions: > =========== > > 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: http://gnuradio.org/redmine/projects/gnuradio/wiki/ChangeLogV3_5 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. -- Tom
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