# Cannot import name GNURadio when launching perf-monitorx and ctrlport-monitor **URL:** \ **Category:** GNU Radio\ **Created:** [August 1, 2015, 7:33am UTC](https://www.ruby-forum.com/t/cannot-import-name-gnuradio-when-launching-perf-monitorx-and-ctrlport-monitor/242840 "2015-08-01T07:33:57Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Sadaf\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/858c86/32.png) [@Sadaf\_N](https://www.ruby-forum.com/u/Sadaf_N)\ **Post date:** [August 1, 2015, 7:33am UTC](https://www.ruby-forum.com/t/cannot-import-name-gnuradio-when-launching-perf-monitorx-and-ctrlport-monitor/242840/1 "2015-08-01T07:33:57Z")
I am trying to measure performance of my OOT module with performance counter and control port. When I execute a command line `gr-perf-monitorx` or `gr-ctrlport-monitor`, an error below occurred: ``` File ``` “/usr/local/lib/python2.7/dist-packages/gnuradio/ctrlport/GrDataPlotter.py”, line 26, in from gnuradio.ctrlport import GNURadio ImportError: cannot import name GNURadio Could anyone give me a hint for this? For detail information, I’ve installed GNU Radio with `build-gnuradio` script. The last commit of cloned git repository in my PC is `d5cea6e4( https://gnuradio.org/redmine/projects/gnuradio/repository/revisions/d5cea6e44e29db6b62fabe2b1e5ec16e91b41e68)` in Jun 22 2015. I can’t remember exactly, but I think this commit was used to install the GNU Radio. Regards, Jeon. ---
**Author:** ![Jeon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e8c25b/32.png) [@Jeon](https://www.ruby-forum.com/u/Jeon)\ **Post date:** [August 1, 2015, 7:42am UTC](https://www.ruby-forum.com/t/cannot-import-name-gnuradio-when-launching-perf-monitorx-and-ctrlport-monitor/242840/2 "2015-08-01T07:42:43Z")
The same error happens in the 3.7.8 release candidate. – Volker ---
**Author:** ![Jeon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e8c25b/32.png) [@Jeon](https://www.ruby-forum.com/u/Jeon)\ **Post date:** [August 3, 2015, 5:06pm UTC](https://www.ruby-forum.com/t/cannot-import-name-gnuradio-when-launching-perf-monitorx-and-ctrlport-monitor/242840/3 "2015-08-03T17:06:37Z")
On Sat, Aug 1, 2015 at 1:41 AM, Volker S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > an error below occurred: > script. The last commit of cloned git repository in my PC is `d5cea6e4( [https://gnuradio.org/redmine/projects/gnuradio/repository/revisions/d5cea6e44e29db6b62fabe2b1e5ec16e91b41e68](https://gnuradio.org/redmine/projects/gnuradio/repository/revisions/d5cea6e44e29db6b62fabe2b1e5ec16e91b41e68))` > in Jun 22 2015. I can’t remember exactly, but I think this commit was used > to install the GNU Radio. > > Regards, > Jeon. This sounds as if Thrift wasn’t found when running cmake. Our cmake scripts use thrift to compile our gnuradio.thrift file into C++ and Python code that is installed with GNU Radio. The output of cmake will tell you if it found Thrift or not. Look under the list of enabled components for: – \* gr-ctrlport – \* \* thrift Tom ---
**Author:** ![Jeon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e8c25b/32.png) [@Jeon](https://www.ruby-forum.com/u/Jeon)\ **Post date:** [August 5, 2015, 3:53pm UTC](https://www.ruby-forum.com/t/cannot-import-name-gnuradio-when-launching-perf-monitorx-and-ctrlport-monitor/242840/4 "2015-08-05T15:53:04Z")
On Wed, Aug 5, 2015 at 2:15 AM, Jeon [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Installing thrift: > $ ./configure > > ``` > $ cmake .. > # or > > ``` > > If you have a system with some fresh installation and configuration, it > won’t be a problem. > > Regards, > Jeon. We write this page to help people build Thrift: [http://gnuradio.org/redmine/projects/gnuradio/wiki/ControlPort](http://gnuradio.org/redmine/projects/gnuradio/wiki/ControlPort) But there are some good hints here about resetting cmake in GNU Radio to get it to recognize Thrift after installation. Thanks, Tom ---
**Author:** ![Jeon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e8c25b/32.png) [@Jeon](https://www.ruby-forum.com/u/Jeon)\ **Post date:** [August 5, 2015, 8:17am UTC](https://www.ruby-forum.com/t/cannot-import-name-gnuradio-when-launching-perf-monitorx-and-ctrlport-monitor/242840/5 "2015-08-05T08:17:24Z")
Dear Tom, Thanks for your advice. Actually, I’ve got a trouble for days installing Thrift and enabling it from GNU Radio. This is just a simple wrap-up for readers who are not familiar with compiling and building things.) Installing thrift: 1. Get Thrift 0.9.2 2. Extract it and build. Make sure that you have all of pre-requisites. 3. Check python can import Thrift 3-1. If python can’t, do the followings: ``` $ cd thrift-0.9.2/lib/py $ sudo python setup.py install Go back step 3. And check again. ``` 1. Build GNU Radio. 4-1. One important thing is, I recommend you to delete everythink inside build directory. ``` At least, I recommend you to remove CMakeCache.txt: $ cd build $ rm -rf ./ # or $ rm CMakeCache.txt This file can help executing cmake, but sometimes it makes cmake get ``` wrong variables. ``` I've spent days to figure out this. cmakek gives me a wrong thrift ``` binary path /usr/bin/thrift. Actually, I have thrift under /usr/local/bin. I think it’s a quite unusual case since I have been messing around my PC. If you have a system with some fresh installation and configuration, it won’t be a problem. Regards, Jeon. 2015-08-04 0:05 GMT+09:00 Tom R. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):