# FunCube Dongle pro +

**URL:** <https://www.ruby-forum.com/t/funcube-dongle-pro/232860>\
**Category:** GNU Radio\
**Created:** [October 31, 2014, 10:52pm UTC](https://www.ruby-forum.com/t/funcube-dongle-pro/232860 "2014-10-31T22:52:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [October 31, 2014, 10:52pm UTC](https://www.ruby-forum.com/t/funcube-dongle-pro/232860/1 "2014-10-31T22:52:34Z")

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Hi,  
I have installed GNU Radio Companion 3.7.5 and the gr-fcdproplus from  
dl1ksv/gr-fcdproplus (GitHub).  
By simpy connecting the fcdproplus block with an fft sink I receive the  
following error:  
File “/home/duthsat/top\_block.py”, line 15, in   
import fcdproplus  
File “/usr/local/lib/python2.7/dist-packages/fcdproplus/ **init**.py”,  
line 45, in   
from fcdproplus\_swig import \*  
File  
“/usr/local/lib/python2.7/dist-packages/fcdproplus/fcdproplus\_swig.py”,  
line 26, in   
\_fcdproplus\_swig = swig\_import\_helper()  
File  
“/usr/local/lib/python2.7/dist-packages/fcdproplus/fcdproplus\_swig.py”,  
line 22, in swig\_import\_helper  
\_mod = imp.load\_module(’\_fcdproplus\_swig’, fp, pathname,  
description)  
ImportError: /usr/local/lib/libgnuradio-fcdproplus.so.0: undefined  
symbol: udev\_enumerate\_new

What I’m doing wrong? version 3.7.5 is it compatible with the  
dl1ksv/gr-fcdproplus?  
Thank you in advance for your help!

---

<div class="post-metadata">

**Author:** ![danielb](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/c57346/32.png) [@danielb](https://www.ruby-forum.com/u/danielb)\
**Post date:** [October 31, 2014, 10:58pm UTC](https://www.ruby-forum.com/t/funcube-dongle-pro/232860/2 "2014-10-31T22:58:32Z")

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On 10/31/2014 05:42 PM, Daniel B. wrote:

> ```
> from fcdproplus_swig import *
> 
> ```
> 
> What I’m doing wrong? version 3.7.5 is it compatible with the  
> dl1ksv/gr-fcdproplus?  
> Thank you in advance for your help!
> 
> * * *
> 
> Discuss-gnuradio mailing list  
> [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
> [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)  
> This is because the version of the libusb library you have is too old to  
> have that particular API call in it.