Eyelink toolbox (Linux)

When I do EyelinkInit, I get this error

Invalid MEX-file '/usr/share/psychtoolbox-3/PsychHardware/EyelinkToolbox/EyelinkBasic/Eyelink.mexa64': libeyelink_core-1.9.so.58:
cannot open shared object file: No such file or directory

What can I do to fix this?
Other functions such as DotDemo, BubbleDemo and GetSecs seem to work OK.
Many thanks ..




Ubuntu 16.04 LTS
Followed installation instructions on

Psychtoolbox-3 - Download, Installation, and Update

 


and

matlab-psychtoolbox-3 – toolbox for vision research – Matlab bindings — Debian Neuroscience Package Repository

 




Download this and extract the contents of the lib folder into /usr/lib.