Re: GNU Radio 3.9 gr_modtool problem

I have installed GNU Radio from the master branch, so I have got version 3.10 now. The install prefix is /usr.

I don't have a ~/.gnuradio/config.conf file, only ~/.gnuradio/grc.conf exists after I have started gnuradio-companion.

The directory /etc/gnuradio/conf.d exists. The files in there are
-rw-r--r-- 1 root root  209 Mai  5 14:09 00-grc-docs.conf
-rw-r--r-- 1 root root 1074 Mai  5 14:09 gnuradio-runtime.conf
-rw-r--r-- 1 root root  351 Mai  5 14:07 gr-audio-alsa.conf
-rw-r--r-- 1 root root  414 Mai  5 14:07 gr-audio.conf
-rw-r--r-- 1 root root  270 Mai  5 14:07 gr-audio-oss.conf
-rw-r--r-- 1 root root  732 Mai  5 14:09 grc.conf
-rw-r--r-- 1 root root  736 Mai  5 14:07 gr_log_default.conf
-rw-r--r-- 1 root root  496 Mai  5 14:07 gr-qtgui.conf
-rw-r--r-- 1 root root  228 Mai  5 14:09 modtool.conf

modtool.conf contains:

# You may override any setting on a per-user basis by editing
# ~/.gnuradio/config.conf
[modtool]
newmod_path = /usr/share/gnuradio/modtool/templates/gr-newmod

The directory /usr/share/gnuradio/modtool/templates/gr-newmod exists and the content is

drwxr-xr-x  2 root root 4096 Mai  5 15:22 apps
drwxr-xr-x  3 root root 4096 Mai  5 15:22 cmake
-rw-r--r--  1 root root 6567 Mai  5 14:07 CMakeLists.txt
drwxr-xr-x  3 root root 4096 Mai  5 15:22 docs
drwxr-xr-x  2 root root 4096 Mai  5 15:22 examples
-rw-r--r--  1 root root   41 Mai  5 14:07 .gitignore
drwxr-xr-x  2 root root 4096 Mai  5 15:22 grc
drwxr-xr-x  3 root root 4096 Mai  5 15:22 include
drwxr-xr-x  2 root root 4096 Mai  5 15:22 lib
-rw-r--r--  1 root root  717 Mai  5 14:07 MANIFEST.md
drwxr-xr-x  3 root root 4096 Mai  5 15:22 python

Then I have created a file config.conf in ~/.gnuradio that contains

[modtool]
newmod_path = /usr/share/gnuradio/modtool/templates/gr-newmod

The error remains.

I can call gr_modtool without parameters. In this case a help text is shown. Only when I want to add a new module the error message is shown.

Ralf

Am 05.05.2021 um 12:31 schrieb Josh Morman:

Check your ~/.gnuradio/config.conf file.  In there is a section [modtool] and a "newmod_path=..."

Verify that matches the value of your installed path.

On mine it says: 

[modtool]
newmod_path = /share/gnuradio/gr39/share/gnuradio/modtool/templates/gr-newmod

For 3.9, there was a slight change in the behavior how GR finds the newmod path:

https://github.com/gnuradio/gnuradio/pull/3266

in that it will look wherever the currently installed prefix is, which can be seen with

gnuradio-config-info --prefix

Make sure your environment variables are sourced correctly - PATH, PYTHONPATH, LD_LIBRARY_PATH, and LIBRARY_PATH

On Tue, May 4, 2021 at 5:50 PM Ralf Gorholt <ralf.gorholt@gmx.de> wrote:

Dear all,

on my Linux Mint (Ubuntu) box, I have installed and compiled GNU Radio
3.9 from source (master branch) as described here:

https://wiki.gnuradio.org/index.php/UbuntuInstall#Focal_Fossa_.2820.04.29

and here:

https://wiki.gnuradio.org/index.php/InstallingGR#From_Source

CMAKE_INSTALL_PREFIX is /usr.

GNU Radio compiles (without UHD and soapy support) and the tests are ok.
gnuradio-companion starts and everything seems ok. However, when I try
to create a new module with "gr_modtool newmod dl5eu", I get the error
message: ModToolException: Could not find gr-newmod source dir.

I have also tried what was necessary for Ubuntu 18:

$ cd /usr/share/gnuradio/modtool/templates/gr-newmod
$ sudo py3clean .

but this did not solve the problem.

With version 3.8 compiled from the maint-3.8 branch I don't have this
problem. Do you have an idea what I am doing wrong here?

Thank you very much.

Kind regards,

Ralf