# RuntimeError: audio\_oss\_sink

**URL:** <https://www.ruby-forum.com/t/runtimeerror-audio-oss-sink/239456>\
**Category:** GNU Radio\
**Created:** [February 27, 2014, 6:11am UTC](https://www.ruby-forum.com/t/runtimeerror-audio-oss-sink/239456 "2014-02-27T06:11:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Detlef\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/58f4c7/32.png) [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\
**Post date:** [February 27, 2014, 6:11am UTC](https://www.ruby-forum.com/t/runtimeerror-audio-oss-sink/239456/1 "2014-02-27T06:11:38Z")

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Hi Alex,

I ran into the same problem with pybombs on Ubuntu. It seems there is a  
missing dependency for audio support for Ubuntu based distros. The  
missing package is libasound2-dev. I never figured out how to rebuild  
just the gr-audio portion, so I just rebuilt the gnuradio package.

-Scott

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**Author:** ![PiccoIntegra](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/4491bb/32.png) [@PiccoIntegra](https://www.ruby-forum.com/u/PiccoIntegra)\
**Post date:** [February 27, 2014, 9:03pm UTC](https://www.ruby-forum.com/t/runtimeerror-audio-oss-sink/239456/2 "2014-02-27T21:03:41Z")

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On Thu, Feb 27, 2014 at 12:10 AM, PiccoIntegra  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Hi Alex,
> 
> I ran into the same problem with pybombs on Ubuntu. It seems there is a  
> missing dependency for audio support for Ubuntu based distros. The missing  
> package is libasound2-dev. I never figured out how to rebuild just the  
> gr-audio portion, so I just rebuilt the gnuradio package.
> 
> -Scott

One of the current issues with our gr-audio system is that is hides  
what types of audio subsystems are being supported when you finish  
configuring everything. We’re working to update our cmake system with  
more obvious results like this being printed at the end of running  
cmake.

As for rebuilding just a part of GNU Radio for something like this,  
you’ll want to rerun cmake (maybe first rm CMakeCache.txt to make sure  
the new dependency is updated) and then just run make. It will rebuild  
some things, but should only build things that are influenced by the  
changes. For more directed builds, you could, after rerunning cmake,  
cd into gr-audio and run make and make install from there.

Tom