[op25-dev] Undefined Symbol Error

James K4JK k4jk.james@gmail.com [op25-dev] op25-dev at yahoogroups.com
Thu Sep 21 13:44:03 UTC 2017


Bill,

Everything works fine with the main branch of OP25. However I am trying to
incorporate some of the changes Joe made to the code a year ago or so.
After putting his changed files into the lib directory op25 compiled fine.
But when I run scope.py I get the error I posted earlier about an Undefined
Symbol.

I don't know much about python or swig so I'm hoping someone on the list
was able to incorporate his changes somehow and let me know what they did.

Thanks for your help.

James


On Thu, Sep 21, 2017 at 9:39 AM, 'William Becks' wa8wg at centurytel.net
[op25-dev] <op25-dev at yahoogroups.com> wrote:

>
>
> James,
>
>
>
> Can you also post your test.tsv file and elaborate on the specific P25
> system that you desire to monitor?    I have not had any issues with the
> RTL SDR on OP25 scope.py running under Ubuntu 14.04 using the following
> command outline to build my system.   Let me know if you are running Ubuntu
> in VirtualBox on a Windows machine as there are a couple of additional
> pointers that I can pass along.
>
>
>
> *Download and install Ubuntu 14.04 Latest:
> http://releases.ubuntu.com/14.04/ <http://releases.ubuntu.com/14.04/>*
>
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> *sudo apt-get updatesudo apt-get build-dep gnuradiosudo apt-get install
> gnuradio gnuradio-dev gr-osmosdr librtlsdr-dev libuhd-dev libhackrf-dev
> libitpp-dev libpcap-dev gitcd ~git clone git://op25.osmocom.org/op25.git
> <http://op25.osmocom.org/op25.git>cd op25mkdir buildcd buildcmake
> ../makesudo make installsudo ldconfigsudo nano
> /etc/modprobe.d/dvb-blacklist.confblacklist r820t;blacklist
> rtl2832blacklist rtl2830blacklist dvb_usb_rtl28xxu# ctrl+x to save and
> exitsudo cp /etc/pulse/client.conf /etc/pulse/client.confbackupsudo nano
> /etc/pulse/client.confEdit the following line: From: ; autospawn = yes To:
> autospawn = noRestart!Create trunk.tsvCreate trunkgroup.tsvCreate scope.sh*
>
>
>
> *cd /home/username/op25/op25/gr-op25_repeater/apps*
>
> *./scope.py --args rtl=0 -N LNA:46 -f 853.9125e6 -S 2560000-q 0*
>
>
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> *-V -T trunk.tsvchmod +x scope.sh*
>
>
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> *Bill, WA8WG*
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>
>
> *From:* op25-dev at yahoogroups.com [mailto:op25-dev at yahoogroups.com]
> *Sent:* Thursday, September 21, 2017 7:13 AM
> *To:* op25-dev at yahoogroups.com
> *Subject:* Re: [op25-dev] Undefined Symbol Error
>
>
>
>
>
> Here is the command I was using
>
> ./scope.py  --args 'rtl' --gains 'lna:44' -f 154732500 -q 1 -S 2000000  -V
> -T test.tsv
>
> Thanks,
>
> James
>
>
>
>
>
> On Wed, Sep 20, 2017 at 12:48 PM, 'William Becks' wa8wg at centurytel.net
> [op25-dev] <op25-dev at yahoogroups.com> wrote:
>
>
>
> James,
>
>
>
> Can you post your scope.py command line as a starting point?
>
>
>
> Bill, WA8WG
>
>
>
>
>
> *From:* op25-dev at yahoogroups.com [mailto:op25-dev at yahoogroups.com]
> *Sent:* Wednesday, September 20, 2017 8:15 AM
> *To:* op25-dev at yahoogroups.com
> *Subject:* [op25-dev] Undefined Symbol Error
>
>
>
>
>
> Hi again all,
>
> I'm trying to get the main branch running with some of the changes that
> Joe incorporated last year. Everything compiles fine (this is a fresh
> install of Ubuntu 14.04) but when running scope.py I'm getting and
> undefined symbol error:
>
>  (most recent call last):
>
>   File "./scope.py", line 55, in <module>
>
>     import op25_repeater
>
>   File "/usr/local/lib/python2.7/dist-packages/op25_repeater/__init__.py",
>
> line 45, in <module>
>
>     from op25_repeater_swig import *
>
>   File
>
> "/usr/local/lib/python2.7/dist-packages/op25_repeater/op25_repeater_swig.py",
>
> line 28, in <module>
>
>     _op25_repeater_swig = swig_import_helper()
>
>   File
>
> "/usr/local/lib/python2.7/dist-packages/op25_repeater/op25_repeater_swig.py",
>
> line 24, in swig_import_helper
>
>     _mod = imp.load_module('_op25_repeater_swig', fp, pathname, description)
>
> ImportError: /usr/local/lib/libgnuradio-op25_repeater.so: undefined
>
> symbol: _ZN8p25p2_vf12encode_dstarEPhPKi
>
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> Searching around for this does not turn up anything really. Has anyone seen this before?
>
> Thanks,
>
> James
>
>
>
> 
>
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