# eyelink mex error

**URL:** <https://psychtoolbox.discourse.group/t/eyelink-mex-error/1674>\
**Category:** Uncategorized\
**Created:** [February 20, 2009, 6:22pm UTC](https://psychtoolbox.discourse.group/t/eyelink-mex-error/1674 "2009-02-20T18:22:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\
**Post date:** [February 20, 2009, 6:22pm UTC](https://psychtoolbox.discourse.group/t/eyelink-mex-error/1674/1 "2009-02-20T18:22:20Z")

</div>

I've just installed the psychtoolbox on a new machine and when I type Eyelink I get the following error:

  

> 

\>\> Eyelink

??? Invalid MEX-file '/Applications/Psychtoolbox/PsychHardware/EyelinkToolbox/EyelinkBasic/Eyelink.mexmaci': dlopen(/Applications/Psychtoolbox/PsychHardware/EyelinkToolbox/EyelinkBasic/Eyelink.mexmaci, 1): Library not loaded: @executable\_path/../Frameworks/eyelink\_core..framework/Versions/A/eyelink\_core

 Referenced from: /Applications/Psychtoolbox/PsychHardware/EyelinkToolbox/EyelinkBasic/Eyelink.mexmaci

 Reason: image not found.

  
 

But if I type help Eyelink, I get the usual help screen. I did an update of Psychtoolbox and I'm using this system:

  

-------------------------------------------------------------------------------------

MATLAB Version 7.4.0.287 (R2007a)

MATLAB License Number: 267527

Operating System: Mac OS X Version: 10.4.11 Build: 8S2167 

Java VM Version: Java 1.5.0\_16 with "Apple Computer, Inc." Java HotSpot(TM) Client VM mixed mode, sharing

-------------------------------------------------------------------------------------

MATLAB Version 7.4 (R2007a) 

EyelinkToolbox Version 1.4.4 

iViewXToolbox Version 0.1 

Curve Fitting Toolbox Version 1.1.7 (R2007a) 

Image Processing Toolbox Version 5.4 (R2007a) 

Psychtoolbox Version 3.0.8 9 October

  

  

Any advice?

  

David