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MATLAB 2019b on Ubuntu 18.04 LTS - Pango and canberra errors when running SPM

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John Johnson
John Johnson on 23 Jan 2020
Answered: Francesco Lo Russo on 23 May 2020
I've just installed MATLAB 2019b on a new install of Ubuntu 18.04 LTS.
One application I run is called SPM. From what I can glean from the web, these errors are MATLAB issues.
The "Failed to load module "canberra..." error happens when SPM starts.
The other "Pango-CRITICAL..." errors happen after I click a button on SPM's interface.
MATLAB hangs after printing the errors, and I have to kill it.
Does anyone know of a fix?
john@ubuntu:~/Downloads$ matlab -r spm
MATLAB is selecting SOFTWARE OPENGL rendering.
Gtk-Message: 15:33:46.996: Failed to load module "canberra-gtk-module"
(MATLAB:103619): Pango-CRITICAL **: 15:34:18.620: pango_font_description_from_string: assertion 'str != NULL' failed
(MATLAB:103619): Pango-CRITICAL **: 15:34:18.620: pango_font_description_get_family: assertion 'desc != NULL' failed
(MATLAB:103619): Pango-CRITICAL **: 15:34:18.620: pango_font_description_set_family: assertion 'desc != NULL' failed
(MATLAB:103619): Pango-CRITICAL **: 15:34:18.620: pango_font_description_get_size: assertion 'desc != NULL' failed
(MATLAB:103619): Pango-CRITICAL **: 15:34:18.620: pango_font_description_set_size: assertion 'desc != NULL' failed
MATLAB Shutdown Error: Killed by User Request
john@ubuntu:~/Downloads$

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Answers (5)


Sai Bhargav Avula
Sai Bhargav Avula on 27 Mar 2020
Hi,
It appears to be that 'libcanberra-gtk-module' doesn't exist or is corrupted. Installing or reinstalling the same would solve the issue. To install or reinstall the same on Ubuntu, the following terminal commands may be used:
Install:
sudo apt-get install libcanberra-gtk-module
Reinstall:
sudo apt-get install --reinstall libcanberra-gtk-module
Hope this helps!

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Francesco Lo Russo
Francesco Lo Russo on 19 Apr 2020
Hi,
the gtk-module should not be a problem. Unfortunatly the pango critical issues prevents me too to use the SPM12 toolbox on my ubuntu 19 with Matlab 2019b.

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Francesco Lo Russo
Francesco Lo Russo on 13 May 2020
by the way SPM12 loads on ubuntu 19.10 but the issue is present in ubuntu 20.4. When I try to load SPM12 I get a similar error:
Gtk-Message: 20:50:03.779: Failed to load module "canberra-gtk-module"
(MATLAB:5371): Pango-CRITICAL **: 20:50:56.862: pango_font_description_from_string: assertion 'str != NULL' failed
(MATLAB:5371): Pango-CRITICAL **: 20:50:56.862: pango_font_description_get_family: assertion 'desc != NULL' failed
(MATLAB:5371): Pango-CRITICAL **: 20:50:56.862: pango_font_description_set_family: assertion 'desc != NULL' failed
(MATLAB:5371): Pango-CRITICAL **: 20:50:56.862: pango_font_description_get_size: assertion 'desc != NULL' failed
(MATLAB:5371): Pango-CRITICAL **: 20:50:56.862: pango_font_description_set_size: assertion 'desc != NULL' failed
MATLAB Shutdown Error: Killed by User Request
Still I have not found any solution to the problem.

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Francesco Lo Russo
Francesco Lo Russo on 14 May 2020
Hi, the SPM mailing list suggested me to follow this link. I’ll try the fix and see if it works.
https://en.wikibooks.org/wiki/SPM/Installation_on_64bit_Linux#Crash_at_startup

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Francesco Lo Russo
Francesco Lo Russo on 23 May 2020
Dear all,
I found an easy fix. Before launching SPM12 just luanch the following command. It solved the problem for me!
#first command to launch
setenv('SPM_HTML_BROWSER','0')
#and after that
spm

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