Re: Re: Gnuradio 3.8 on Windows generates negative return codes

[CEL]

Correct me, as I'm really not a Visual Studio expert but:

VS2008 predates C++11 support; you shouldn't be able to sensibly use it
for GNU Radio 3.8's C++11 codebase.
If I remember correctly, that's why we set the minimum MSVC version to
1800 (which corresponds to Visual Studio 2012, I think).

Best regards,
Marcus

On Sat, 2019-11-30 at 10:57 -0500, Geof Nieboer wrote:
> >  I have Visual Studio 2008 installed for C++ development. However,
> I do not understand how this works with python.
> 
> I'm not sure if VS 2008 supports python debugging, but I know that
> 2015 does, just have to be sure that the python features are
> installed.  Then you can create a python-based project, then add the
> existing .py file to it, and "Step Into" Run like a C++ file.  The
> only tricky part is setting up the python environment correctly, but
> the variables you need are all in the run_gr.bat file.
> 
> A simpler but cruder option is the old "add print 'made to here'
> lines everywhere" and let us know where it's dying.  Unfortunately I
> suspect it will be on "tb.start()" which won't provide much of a
> smoking gun.
> 
> Geof
> 
> On Fri, Nov 29, 2019 at 7:00 PM Lukas Haase <address@hidden>
> wrote:
> > Hi Geof,
> > 
> > Thank you very much for your help.
> > 
> > On 2019-11-29 17:37, Geof Nieboer wrote:
> > > Lukas,
> > >
> > > [...]
> > >
> > > So obviously something is failing early in the python script
> > before it
> > > really gets the flowgraph going.   That error code is fairly
> > vague,
> > > google tells me it's a generic system error.
> > >
> > > Please try this, open the GR command prompt, and attempt to run
> > the
> > > generated python file manually, and see if it produces any more
> > useful
> > > detail.
> > 
> > Nope, nothing:
> > 
> > O:\local>python test_qt.py
> > 
> > O:\local>
> > 
> > > The next step after that would be to try to run the python
> > > script in Visual Studio (or your preferred debugger) in debug
> > mode and
> > > figure out what line is causing the failure.
> > 
> > Could you elaborate on this briefly?
> > 
> > I have Visual Studio 2008 installed for C++ development. However, I
> > do not understand how this works with python.
> > 
> > > Another thing to try to would be to run it as admin and see if
> > anything
> > > different occurs.  Also try setting to "No Gui" just for kicks.
> > 
> > As admin: exactly the same output.
> > 
> > No Gui: exactly the same.
> > 
> > > The fact that the second flowgraph does show the radio
> > initializing is a
> > > good sign, it shows that block is starting up as expected.
> > 
> > I should have mentioned that this one is from another workstation
> > (same version/configuration).
> > 
> > Additionally: Resizing the companion window makes it crash:
> > 
> > Assertion failed: CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&surface-
> > >ref_count), file cairo-surface.c, line 955
> > 
> > (for this one I will file a bug report).
> > 
> > 
> > Thanks,
> > Luke
> > 
> >

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