Invalid MEX-file error

I'm using Matlab R2019b with the PsychToolbox to run a visual stimuli sequence on a screen and keep getting the following mex file error:

Invalid MEX-file '/home/snaillab/MATLAB/TOOLBOXES/Psychtoolbox/PsychBasic/Screen.mexa64': libdc1394.so.22: cannot open shared

object file: No such file or directory

Error in HideCursor (line 32)

Screen('HideCursorHelper', screenid, mouseid);

Error in pilot_retrograde_visual (line 18)

HideCursor

How can I fix this?

[Sebastian Mcbride]

I have the same issue, did you manage to resolve it? If yes, could you, please, share how?

Answer 1

[Matteo Lisi]

I encountered the same issue in Matlab r2019b under Ubuntu 18.04. Running this in a terminal made the trick for me:

sudo apt-get update
sudo apt-get install libdc1394-22

[Aaron Huynh]

Did this work in Windows or just MacOS?

[Jan]

@Aaron Huynh: Neither, it works on Linux only.