Re: [Discuss-gnuradio] Windows DLL Error && Missing Ubuntu Apt-Get Components

[Christopher Harper]

Geof:

You were right, and I installed the Intel x64 Fortran package available here: https://software.intel.com/en-us/articles/redistributable-libraries-of-the-intel-c-and-fortran-compiler-for-windows

Unfortunately, I'm now getting python.exe crashes when launching GnuRadio Companion.  I'll try re-installing tomorrow and getting back to you.

Martin:

Sorry for the late response.  I was (roughly) following the receiving end of this tutorial: https://oshearesearch.com/index.php/2015/05/31/building-a-burst-fsk-modem-in-gnu-radio-with-message-lambda-blocks-and-eventstream/

The list came from something I built from the Windows package. The rtl_sdr source in particular came with the default install and I didn't think much of it. Where would I find something like the rtl_sdr source in Linux?  I'm connecting to an rtl_tcp server on my router.  I can try PyBombs again, but it sounds like it won't fix my main problem.

Thank you both for getting back to me!

-Chris

On Sun, Mar 11, 2018 at 2:00 PM, Geof Nieboer <address@hidden> wrote:

Christopher, 

On the windows side, there is a tool called Dependency Walker that has been really vital for me to track down missing DLL's.  To use it here, right-click on the appropriate Python DLL (Probably C:\Program Files\GNURadio-3.7\gr-python27\lib\site-packages\scipy-0.18.1-py2.7-win-amd64.egg\scipy\special\_ufuncs.pyd) and simply go "Analyze DLL".  It will then walk through all the dependencies and figure out what DLL is actually missing.

The version on my machine is looking for LIBMMD.DLL which is part of the Intel Fortran compiler redistributable, not MKL.  I would look for that file, I will take a note to ensure it is included in the next binary if in fact that's the issue.  If you do have it on your machine, make sure it's path is included in PATH.

Geof

On Thu, Mar 8, 2018 at 3:58 PM, Martin Braun <address@hidden> wrote:

Hey Christopher,

sorry to hear you're having so much trouble.

On 02/22/2018 07:00 PM, Christopher Harper wrote:
> I've been struggling to get this working.  I've ended up with partial
> success from the Ubuntu package, the Win binary, and the PyBombs source
> script.  Really, any three of the following options would be great if
> somebody could give me pointers.
>
> 1) Ubuntu 16.04 package
> Using the apt-get package for Ubuntu 16.04, I'm missing components in
> the companion.  Specifically, at least the following (found trying to
> load a partial-success from 2):
>
>     >>> Error: Block key "blocks_multiply_const_xx" not found
>     >>> Error: Block key "burst_fsk_time_sync" not found
>     >>> Error: Block key "burst_slicer" not found
>     >>> Error: Block key "es_handler_pdu" not found
>     >>> Error: Block key "es_trigger_edge_f" not found
>     >>> Error: Block key "rtlsdr_source" not found

Which apps/examples are you running? rtlsdr_source, for example, is not
actually part of core GNU Radio. That said, some of the others are.


> 2) Windows 10
> Failing that, I switched to Windows and got much further on the binary
> (3.7.11.1).  Unfortunately, I can't use the "Burst FSK Time Sync"
> block.  It's giving me the following DLL error:
>
>       File "C:\Program
>     Files\GNURadio-3.7\gr-python27\lib\site-packages\scipy-0.18.1-py2.7-win-amd64.egg\scipy\special\__init__.py",
>     line 636, in <module>
>         from ._ufuncs import *
>     ImportError: DLL load failed: The specified module could not be found.
>
>
> A little bit of Googling got me to install Intel's MKL Windows package;
> didn't help.

Not sure about this. First, the FSK time sync block shouldn't be
importing scipy. And if that's the issue, I'd except an import error,
not a DLL load error. Do you have a _ufuncs_import DLL anywhere?

> 3) Linux, PyBombs
> I decided to go back to Linux, and picked the PyBombs route (really cool
> app btw - kudos to that team!).  Unfortunately, I ended up at the
> following compile error (I found something in this mailing list from
> 2016 with it, but didn't quite follow what fixed the issue):
>
>     [ 86%] Building CXX object
>     gr-uhd/swig/CMakeFiles/_uhd_swig.dir/uhd_swigPYTHON_wrap.cxx.o
>     /home/Chris/grc/src/gnuradio/build/gr-uhd/swig/uhd_swigPYTHON_wrap.cxx:
>     In function ‘PyObject* _wrap_dboard_iface_set_gpio_debug(PyObject*,
>     PyObject*, PyObject*)’:
>     /home/Chris/grc/src/gnuradio/build/gr-uhd/swig/uhd_swigPYTHON_wrap.cxx:27935:15:
>     error: ‘class uhd::usrp::dboard_iface’ has no member named
>     ‘set_gpio_debug’
>            (arg1)->set_gpio_debug(arg2,arg3);
>                    ^
>     ...
>
>     CMakeFiles/Makefile2:13309: recipe for target
>     'gr-uhd/swig/CMakeFiles/_uhd_swig.dir/all' failed
>     make[1]: *** [gr-uhd/swig/CMakeFiles/_uhd_swig.dir/all] Error 2
>     Makefile:160: recipe for target 'all' failed
>     make: *** [all] Error 2
>     PyBOMBS.Packager.source - ERROR - Build failed. See output above for
>     error messages.
>     PyBOMBS.Packager.source - ERROR - Problem occurred while building
>     package gnuradio:
>     Build failed.
>     PyBOMBS.install_manager - ERROR - Error installing package gnuradio.
>     Aborting.

I think this is a UHD error that is now resolved. Can you try this again?

-- M

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