Hello Vipin,
Just as a sanity check (from some funny behaviour that I saw recently): can
you actually import that module in a python interpreter (such as ipython or
bpython)? I.e. are you able to do the following?
>>> import a1System
>>> from a1System import TargetDetector_cf
On Mon, Jul 10, 2017 at 7:59 AM, <vipinsha...@photonpace.com> wrote:
> I tried ‘sudo ldconfig’ and then regenerated the flowgraph after
> re-building the application. I see the same issue as before. Here is the
> output of ‘ldd’. How do I know what is missing?
>
>
>
> linux-vdso.so.1 => (0x00007ffc10dfd000)
>
> libboost_system.so.1.58.0 =>
> /usr/lib/x86_64-linux-gnu/libboost_system.so.1.58.0
> (0x00007fc09f77b000)
>
> libgnuradio-runtime-3.7.11.1.so.0.0.0 =>
> /usr/local/lib/libgnuradio-runtime-3.7.11.1.so.0.0.0 (0x00007fc09f48f000)
>
> libgnuradio-pmt-3.7.11.1.so.0.0.0 =>
> /usr/local/lib/libgnuradio-pmt-3.7.11.1.so.0.0.0 (0x00007fc09f23f000)
>
> libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> (0x00007fc09eebd000)
>
> libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6
> (0x00007fc09ebb4000)
>
> libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
> (0x00007fc09e99d000)
>
> libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6
> (0x00007fc09e5d3000)
>
> libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
> (0x00007fc09e3b6000)
>
> libvolk.so.1.3 => /usr/local/lib/libvolk.so.1.3
> (0x00007fc09dfea000)
>
> libboost_program_options.so.1.58.0 =>
> /usr/lib/x86_64-linux-gnu/libboost_program_options.so.1.58.0
> (0x00007fc09dd6c000)
>
> libboost_filesystem.so.1.58.0 =>
> /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.58.0
> (0x00007fc09db54000)
>
> libboost_thread.so.1.58.0 =>
> /usr/lib/x86_64-linux-gnu/libboost_thread.so.1.58.0
> (0x00007fc09d92d000)
>
> librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1
> (0x00007fc09d725000)
>
> /lib64/ld-linux-x86-64.so.2 (0x000055ff2d4b7000)
>
> liborc-0.4.so.0 => /usr/lib/x86_64-linux-gnu/liborc-0.4.so.0
> (0x00007fc09d4a4000)
>
>
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
> *From: *Nicolas Cuervo <nicolas.cue...@ettus.com>
> *Sent: *Sunday, July 9, 2017 10:49 PM
> *To: *Vipin Sharma <vipinsha...@photonpace.com>
> *Cc: *GNURadio Discussion List <discuss-gnuradio@gnu.org>
> *Subject: *Re: [Discuss-gnuradio] Runtime AttributeError for custom block
>
>
>
> Hi,
>
>
>
> it is nice that you look for the error before posting, but does your
> module actually need the ITPP libraries? because that might have been
> something specific for the case that you quoted.
>
> To check if your problem is linking, first run the following command:
>
>
>
> $ sudo ldconfig
>
>
>
> and then try to start again your application in GRC.
>
>
>
> If the problem persists, then you have to look for some required library
> which linking is not made properly. To check the linking you can run the
> "ldd" command on the generated shared object of your module (which, based
> on your email, is supposed to be called something like
> 'libgnuradio-a1System.so')
>
> Regards,
>
> - Nicolas
>
>
>
> On Mon, Jul 10, 2017 at 6:31 AM, Vipin Sharma <vipinsha...@photonpace.com>
> wrote:
>
> I have a Python flowgraph which instantiates a few custom blocks (written
> in C++). The flow graph generate is fine but when I try to run the program
> through GUI, I get attribute errors as shown below.
>
>
>
> After researching a bit, I found out that one potential cause could be
> missing ITPP libraries as discussed in an old post here:
> https://lists.gnu.org/archive/html/discuss-gnuradio/2015-02/msg00158.html
> .
>
>
>
> I followed through suggested changes (adding following lines in my
> lib/CMakeList.txt). This doesn't seem to help at all; I don't see any extra
> libraries being included in the final a1System.so library under build/lib/
> after the 'make build'. This likely implies I am still missing a critical
> step for the custom blocks in C++. Any ideas how I can proceed?
>
>
>
> Excerpt from lib/CMakeList.txt file:
>
>
>
> list(APPEND a1System_libs
>
> ${GNURADIO_ALL_LIBRARIES}
>
> ${ITPP_LIBRARIES}
>
> )
>
> target_link_libraries(gnuradio-a1System ${Boost_LIBRARIES}
> ${a1System_libs})
>
>
>
> Runtime Log from GRC:
>
>
>
> File "/home/vipin/a1/grc/a1-rfe+mimo/gr-a1System/build/top_block.py", line
> 234, in <module>
>
> main()
>
> File "/home/vipin/a1/grc/a1-rfe+mimo/gr-a1System/build/top_block.py", line
> 222, in main
>
> tb = top_block_cls()
>
> File "/home/vipin/a1/grc/a1-rfe+mimo/gr-a1System/build/top_block.py", line
> 164, in __init__
>
> self.a1System_TargetDetector_cf_0 = a1System.TargetDetector_cf(512, 10, 1024,
> 2, 5, 1, 1, 1, 1)
>
> AttributeError: 'module' object has no attribute 'TargetDetector_cf'
>
>
> _______________________________________________
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> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
>
>
>
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