Re: [Discuss-gnuradio] Executing the flow graph: window closes immediatly

[nick_meynen]

I followed the tutorial on gnuradio.org (correct link:  http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_GRC )

This is the particular flowchart we're talking about:  https://raw.githubusercontent.com/gnuradio/gr-tutorial/master/examples/tutorial2/images/tutorial_two_1.png

In attachment is the .grc file. 

Best regards,

Nick

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Van: "Marcus Müller" <address@hidden>
Aan: "nick meynen" <address@hidden>, "GNURadio Discussion List" <address@hidden>
Verzonden: Maandag 24 augustus 2015 15:17:40
Onderwerp: Re: [Discuss-gnuradio] Executing the flow graph: window closes immediatly

That does sound correct; so we need to really look deeper into what goes wrong in your flowgraph. Which one from that tutorial are we talking about specifically? Can you share the .grc file?

Best regards,
Marcus

On 08/24/2015 08:26 AM, address@hidden wrote:

Hi Marcus,

I installed the gnu radio from the command "sudo apt-get install gnuradio" trough the terminal.  

This installation went smooth and I did not observe any problems.  

After this I started to follow the tutorial ( http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_GRC ) but on step 2.1.2 the cmake command failed so i needed to install the cmake and doxygen packages.  

Best regards,

Nick

---

Van: "Marcus Müller" <address@hidden>
Aan: address@hidden
Verzonden: Zondag 23 augustus 2015 22:28:38
Onderwerp: Re: [Discuss-gnuradio] Executing the flow graph: window closes immediatly

Hi Nick,

segmentation fault is a severe error; it means that the program you generated tried to access memory that wasn't there. The error really doesn't say anything more.
We haven't seen such error in released GNU Radio versions lately.

My guess therefore is that there might be something wrong with your set up instead.
How did you install GNU Radio? If you've installed it from source, or build-gnuradio, or pybombs you *must not* install gnuradio from Ubuntu's package archives.

Best regards,
Marcus

On 23.08.2015 22:05, address@hidden wrote:

Hello,

I'm totally new to the gnu radio project and trying my first steps into the world of SDR.  

At this moment i ran into a problem:  I followed the steps of the tutorial at http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_GRC

I made the flowchart exactly as described in the tutorial, but when i try to execute the flow graph, a window appears and directly closes.  

When I try to run the code directly from the terminal i get following message: Segmentation fault (core dumped)

I'm running Ubuntu 14.04 LTS.  

How can I fix this issue?

Regards

Nick

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Tutorial 2.grc
Description: application/xml