# GR-UHD detected ABI compatibility mismatch with UHD library

**URL:** <https://www.ruby-forum.com/t/gr-uhd-detected-abi-compatibility-mismatch-with-uhd-library/239739>\
**Category:** GNU Radio\
**Created:** [March 12, 2014, 7:24pm UTC](https://www.ruby-forum.com/t/gr-uhd-detected-abi-compatibility-mismatch-with-uhd-library/239739 "2014-03-12T19:24:39Z")\
**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:** [March 12, 2014, 7:24pm UTC](https://www.ruby-forum.com/t/gr-uhd-detected-abi-compatibility-mismatch-with-uhd-library/239739/1 "2014-03-12T19:24:39Z")

</div>

Hi All,

After installing UHD and GNU Radio, when I execute any flowgraph using  
the  
USRP, I find this error:

\*RuntimeError: \*  
_GR-UHD detected ABI compatibility mismatch with UHD library._  
_GR-UHD was build against ABI: 3.4.0-3,_  
_but UHD library reports ABI: 3.6.0-1_  
_Suggestion: install an ABI compatible version of UHD,_  
_or rebuild GR-UHD component against this ABI version._

I am aware that the problem is coming from the incompatibility of the  
UHD  
version required in GNU Radio installation with the UHD version  
installed.

What should I do to fix it?

Any help is appreciated. Thank you.

Regards,  
Azza

---

<div class="post-metadata">

**Author:** ![Azza\_Ben\_Mosbah](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/e56c9b/32.png) [@Azza\_Ben\_Mosbah](https://www.ruby-forum.com/u/Azza_Ben_Mosbah)\
**Post date:** [March 12, 2014, 8:33pm UTC](https://www.ruby-forum.com/t/gr-uhd-detected-abi-compatibility-mismatch-with-uhd-library/239739/2 "2014-03-12T20:33:31Z")

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Hi Azza!

How did you install UHD and GNU Radio, and what is your Device?  
Basically, your GNU Radio seems to be built against an UHD version  
that is older than the one you have installed.  
The best way to solve this issue is usually

1. Making sure to fully uninstall GNU Radio and uhd; make sure that  
none of the uhd files remain
2. install it using pyBOMBS; this should take care of installing the  
right UHD version; however, it can’t fix awkwardly-half-installed  
library version 😉

Greetings,  
Marcus

On 12.03.2014 19:23, Azza Ben Mosbah wrote:

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> [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)

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