Can't declare symbolic variables

Mac OSX 10.8.2 When I try:

>> syms x y

I get the following error:

Invalid MEX-file
'/Applications/MATLAB_R2012b.app/toolbox/symbolic/symbolic/mupadmex.mexmaci64':
dlopen(/Applications/MATLAB_R2012b.app/toolbox/symbolic/symbolic/mupadmex.mexmaci64, 1):
Library not loaded: QtWebKit.framework/Versions/4/QtWebKit
  Referenced from:
  /Applications/MATLAB_R2012b.app/toolbox/symbolic/symbolic/mupadmex.mexmaci64
  Reason: no suitable image found.  Did find:
  /Applications/MATLAB_R2012b.app/bin/maci64/QtWebKit.framework/Versions/4/QtWebKit:
        truncated mach-o error: segment __LINKEDIT extends to 31858872 which is past end
        of file 31858711

Error in /Applications/MATLAB_R2012b.app/toolbox/symbolic/symbolic/symengine.p>symengine
(line 26)

Error in sym (line 106)
        [~] = symengine;

Error in syms (line 66)
        assignin('caller',x,sym(x));

How can I fix this?

Answer 1

[Walter Roberson]

A similar report I find about that error message for QtWebKit turned out to be due to the toolkit binary having been improperly copied to the Mac from a remote system.

I suggest trying re-installing. No promises.

Answer 2

[Warren]

Walter- Good suggestion. I did a reinstall and everything works fine now. Thanks Warren