# Problem during make process

**URL:** <https://www.ruby-forum.com/t/problem-during-make-process/230909>\
**Category:** GNU Radio\
**Created:** [July 11, 2014, 8:32pm UTC](https://www.ruby-forum.com/t/problem-during-make-process/230909 "2014-07-11T20:32:10Z")\
**Posts on this page:** 1\
**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:** [July 11, 2014, 8:32pm UTC](https://www.ruby-forum.com/t/problem-during-make-process/230909/1 "2014-07-11T20:32:10Z")

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Hi to all, and thanks for reading my post.  
As a first i’m a beginner in GNU… , i have this problem :  
during make process i found this feedback :

65%] Building CXX object  
gr-audio/lib/CMakeFiles/gnuradio-audio.dir/jack/jack\_source.cc.o  
/home/x41giulio/SDR/gnuradio/gr-audio/lib/jack/jack\_source.cc: In member  
function ‘virtual bool gr::audio::jack\_source::check\_topology(int,  
int)’:  
/home/x41giulio/SDR/gnuradio/gr-audio/lib/jack/jack\_source.cc:170:  
error: ‘to\_string’ is not a member of ‘boost’  
make[2]: \*\*\*  
[gr-audio/lib/CMakeFiles/gnuradio-audio.dir/jack/jack\_source.cc.o] Error  
1  
make[1]: \*\*\* [gr-audio/lib/CMakeFiles/gnuradio-audio.dir/all] Error 2  
make: \*\*\* [all] Error 2

i have installed Python JACK Audio Driver 3.2.2  
my OS is Ubuntu 10.04  
gcc 4.4.4.3  
cmake 3.0.0

thanks in advance for any reply…

Giulio