# PyBOMBS installed gnuradio: uhd\_usrp\_sink not found **URL:** \ **Category:** GNU Radio\ **Created:** [May 21, 2014, 9:40am UTC](https://www.ruby-forum.com/t/pybombs-installed-gnuradio-uhd-usrp-sink-not-found/241263 "2014-05-21T09:40:35Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\ **Post date:** [May 21, 2014, 9:40am UTC](https://www.ruby-forum.com/t/pybombs-installed-gnuradio-uhd-usrp-sink-not-found/241263/1 "2014-05-21T09:40:35Z")
After installing gnuradio using PyBOMBS, the USRP Sink and Source blocks are unavailable. Below is the message: 1). To verify uhd has been installed: ``` [03:25pm] activecat@rs: ~/download/gnuradio/pybombs $ ./pybombs ``` install uhd Settled on prefix: /usr/local Initializing environmental variables… /usr/local/python/:/usr/local/lib/python2.6/site-packages/:/usr/local/lib64/python2.6/site-packages/:/usr/local/lib/python2.6/dist-packages/:/usr/local/lib64/python2.6/dist-packages/:/usr/local/lib/python2.7/site-packages/:/usr/local/lib64/python2.7/site-packages/:/usr/local/lib/python2.7/dist-packages/:/usr/local/lib64/python2.7/dist-packages/:/usr/local/python/:/usr/local/lib/python2.6/site-packages/:/usr/local/lib64/python2.6/site-packages/:/usr/local/lib/python2.6/dist-packages/:/usr/local/lib64/python2.6/dist-packages/:/usr/local/lib/python2.7/site-packages/:/usr/local/lib64/python2.7/site-packages/:/usr/local/lib/python2.7/dist-packages/:/usr/local/lib64/python2.7/dist-packages/ ---------- loading recipes ------------------- Loading recipes … Loading recipes … done ---------- loading recipes finished ---------- ``` checking for uhd True uhd already installed ``` 2). To execute GRC and load the flowgraph: ``` activecat@rs: ~/download/gnuradio/pybombs $ gnuradio-companion Warning: Block key "blocks_ctrlport_monitor_performance" not found ``` when loading category tree. Warning: Block key “blocks\_ctrlport\_monitor\_performance” not found when loading category tree. \<\<\< Welcome to GNU Radio Companion v3.7.4git-257-gcb0bc7f0 \>\>\> ``` Preferences file: /home/activecat/.grc Block paths: /usr/local/share/gnuradio/grc/blocks /home/activecat/.grc_gnuradio Loading: ``` “/home/activecat/Dropbox/gr-activecat/examples/1002\_quad\_PLL.grc” \>\>\> Done ``` Showing: ``` “/home/activecat/Dropbox/gr-activecat/examples/1002\_quad\_PLL.grc” ``` Loading: ``` “/home/activecat/Dropbox/gr-activecat/examples/4001\_tx\_works.grc” \>\>\> Error: Block key “uhd\_usrp\_sink” not found in Platform - grc(GNU Radio Companion) None \>\>\> Done ``` Showing: ``` “/home/activecat/Dropbox/gr-activecat/examples/4001\_tx\_works.grc” 3). The error message (part of above message): ``` >>> Error: Block key "*uhd_usrp_sink*" not found in Platform - ``` grc(GNU Radio Companion) 4). System info: ``` activecat@rs: ~ $ uname -a Linux mmuDESKTOP 3.2.0-4-686-pae #1 SMP Debian 3.2.57-3+deb7u1 i686 ``` GNU/Linux ``` activecat@rs: ~ $ gcc --version gcc (Debian 4.7.2-5) 4.7.2 Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There ``` is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ``` activecat@rs: ~ $ cmake --version cmake version 2.8.9 ``` How to solve this? ---
**Author:** ![activecat\_k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c57346/32.png) [@activecat\_k](https://www.ruby-forum.com/u/activecat_k)\ **Post date:** [May 21, 2014, 10:37am UTC](https://www.ruby-forum.com/t/pybombs-installed-gnuradio-uhd-usrp-sink-not-found/241263/2 "2014-05-21T10:37:14Z")
Have you run: ./pybombs env …and then run: source …/target/setup\_env.sh (alter file path to taste) Mike – Mike J. M0MIK BSc MIET Ettus R. Technical Support Email: removed\_email\_address@domain.invalid Web: [http://ettus.com](http://ettus.com) ---
**Author:** ![activecat\_k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c57346/32.png) [@activecat\_k](https://www.ruby-forum.com/u/activecat_k)\ **Post date:** [May 21, 2014, 1:33pm UTC](https://www.ruby-forum.com/t/pybombs-installed-gnuradio-uhd-usrp-sink-not-found/241263/3 "2014-05-21T13:33:52Z")
The “UHD Source” GRC block uses the file called “uhd\_usrp\_source.xml”. Make sure that this is in your GRC path. To set the GRC path you need to go into the ~/.gnuradio folder and create a config.conf file and add the following tweaked with your actual path to the “UHD source” block: [grc] global\_blocks\_path = /usr/local/share/gnuradio/grc/blocks Mike – Mike J. M0MIK BSc MIET Ettus R. Technical Support Email: removed\_email\_address@domain.invalid Web: [http://ettus.com](http://ettus.com) ---
**Author:** ![activecat\_k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c57346/32.png) [@activecat\_k](https://www.ruby-forum.com/u/activecat_k)\ **Post date:** [May 22, 2014, 7:54am UTC](https://www.ruby-forum.com/t/pybombs-installed-gnuradio-uhd-usrp-sink-not-found/241263/4 "2014-05-22T07:54:57Z")
On Wed, May 21, 2014 at 7:31 PM, Mike J. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)wrote: > Mike Unfortunately, the file “uhd\_usrp\_source.xml” doesn’t exist at all. I’ve searched it in both “/usr/local” and “~/download/gnuradio/target”, the file simply does not exists! ---
**Author:** ![activecat\_k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c57346/32.png) [@activecat\_k](https://www.ruby-forum.com/u/activecat_k)\ **Post date:** [May 21, 2014, 12:29pm UTC](https://www.ruby-forum.com/t/pybombs-installed-gnuradio-uhd-usrp-sink-not-found/241263/5 "2014-05-21T12:29:14Z")
On Wed, May 21, 2014 at 4:35 PM, Mike J. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)wrote: > Have you run: > > ./pybombs env > > …and then run: > > source ../target/setup\_env.sh (alter file path to taste) > > Mike Yes, this has been performed. During gnuradio installation, I configured the prefix to /usr/local due to a reason mentioned in [http://gnuradio.4.n7.nabble.com/PyBOMBS-install-gnuradio-3-7-4-td48343.html](http://gnuradio.4.n7.nabble.com/PyBOMBS-install-gnuradio-3-7-4-td48343.html) Hence, I had performed these: sudo ./pybombs install gnuradio —\> install gnuradio to /usr/local sudo ./pybombs env —\> refresh settings in /usr/local/setup\_env.sh source /usr/local/setup\_env.sh gnuradio-companion With these the uhd becomes not available in GRC. ---
**Author:** ![activecat\_k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c57346/32.png) [@activecat\_k](https://www.ruby-forum.com/u/activecat_k)\ **Post date:** [May 22, 2014, 11:58am UTC](https://www.ruby-forum.com/t/pybombs-installed-gnuradio-uhd-usrp-sink-not-found/241263/6 "2014-05-22T11:58:05Z")
This means that UHD was not installed correctly. If running the following doesn’t find anything then hunt down and remove any ghost version of UHD that makes Pybombs think that it is installed and then reinstall it using pybombs: sudo find / -name uhd\_usrp\_source.xml Mike – Mike J. M0MIK BSc MIET Ettus R. Technical Support Email: removed\_email\_address@domain.invalid Web: [http://ettus.com](http://ettus.com)