MATLAB cannot find super-class 'matlab.system.SFunCore' when using Computer Vision System toolbox

I have downloaded I trial version of MATLAB R2011a and the Computer Vision System toolbox, but for some reason I get errors when trying to use any of the Computer Vision System toolbox functions and system objects. The error are all of the form: "??? Error using ==> vision.VideoFileReader The specified super-class 'matlab.system.SFunCore' contains a parse error or cannot be found on MATLAB's search path, possibly shadowed by another file with the same name." I found that the super class might be defined in MATLAB\R2011a\toolbox\shared\system\... which was not included in my trial version, but that I have in the R2010a version. I have tried to add the path '...\MATLAB\R2010a\toolbox\shared\system\', but I still get the same error. I do not know what more I could try? I would sincerely appreciate any suggestions.

Answer 1

[Friedrich]

Hi,

please never mix up files from two different MATLAB releases. Please reinstall the Trial Toolbox again. If it still not work, please contact the installation Support. They can help you in order to set up a clean and working MATLAB + Toolbox installation.

I am wondering that you can actually see a file for this since for me in R2011a:

which -all matlab.system.SFunCore
matlab.system.SFunCore is a built-in method  % matlab.system.SFunCore constructor

So its a built in. Please run the same command and check the output. If other output than the above is displayed you have overloaded the constructor. Please remove the overloaded constructor if one exists.

[Marte Marie]

"which -all matlab.system.SFunCore" returned: "'matlab.system.SFunCore' not found" both before and after reinstalling the toolbox.

I will do as you suggested and contact the Installation Support.

Thank you for your help.