First proper build - missing blocks

GNU Radio
1

Sorry but this is a very newbie question. I tried to get GR up and
running
many years ago when Fedora 8 was new! I then tried a couple of times to
get
it going on windows - I got some blocks up but could not move or connect
then. I have now just installed Ubuntu 13.10 on an old laptop to have a
proper go at getting GR up and running as I now have some time to try
and
play properly.

I went with the simplest looking way of doing GR3.7.1 with
$ sudo apt-get install gnuradio
but ended up with 205 warnings and a load of errors.

I tried this a couple of times with same result.

I then tried to remove as much of this as I could and went down this
road
$ git clone http://git.gnuradio.org/git/gnuradio.git
$ ./build-gnuradio
And this seemed to work OK. No warnings, no errors.

Some time later I managed to get gnuradio-companion (can I still call it
grc?) up and running and tried to get the Dial Tone example built.

First thing - no Signal Source block. The only source blocks I have in
Audio
is Audio Source and Wav File Source, no Signal Source.

I then tried to load up rtl2832-cfile.grc and ended with multiple

Error: Block key “gr_file_source” not found in Platform - grc …
Other blocks not found included gr_uchar_to_float, gr_add_const_vxx,
gr_multiply_const_vxx, gr_float_to_complex stc.

These all seem like some of the really basic stuff. I have done quite a
few
hours of googling with “not found in Platform” etc but have not been
able to
get any further.

I realise this is not quite up the level of most posts here but I hope
someone may have seen this before and knows exactly what the problem is.

Thanks, Andy.

2

On Mon, Oct 28, 2013 at 12:29:31PM -0000, [email protected]
wrote:

Sorry but this is a very newbie question. I tried to get GR up and running
many years ago when Fedora 8 was new! I then tried a couple of times to get
it going on windows - I got some blocks up but could not move or connect
then. I have now just installed Ubuntu 13.10 on an old laptop to have a
proper go at getting GR up and running as I now have some time to try and
play properly.

I went with the simplest looking way of doing GR3.7.1 with
$ sudo apt-get install gnuradio
but ended up with 205 warnings and a load of errors.

You got errors when running apt-get install gnuradio? Can you please
pastebin them somewhere?

In general, you can and should use apt-get install if the version you
get is “new enough” for your taste.

I tried this a couple of times with same result.

I then tried to remove as much of this as I could and went down this road
$ git clone http://git.gnuradio.org/git/gnuradio.git
$ ./build-gnuradio

FYI: build_gnuradio does the cloning for you.

And this seemed to work OK. No warnings, no errors.

Some time later I managed to get gnuradio-companion (can I still call it
grc?) up and running and tried to get the Dial Tone example built.

You can’t call it grc on the command line (there was a package conflict
a while back).

First thing - no Signal Source block. The only source blocks I have in Audio
is Audio Source and Wav File Source, no Signal Source.

I then tried to load up rtl2832-cfile.grc and ended with multiple

Error: Block key “gr_file_source” not found in Platform - grc …
Other blocks not found included gr_uchar_to_float, gr_add_const_vxx,
gr_multiply_const_vxx, gr_float_to_complex stc.

It seems like you’re trying to import a really old flow graph. All of
these blocks have been moved to a new sub-component (in this case,
gr-blocks).

When you start GRC, you can find all of these blocks in the sidebar.
This way, you should be able to reconstruct your flow graph in no time.

MB

–
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Dipl.-Ing. Martin B.
Research Associate

Kaiserstraße 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-43790
Fax: +49 721 608-46071
www.cel.kit.edu

KIT – University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association

3

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