When I am starting the MATLAB I am getting the following error for MATLAB 7.4.0(R2007a) version.

I have already re-installed my MATLAB setup, and also tried the following commands, but this error still persists.

restoredefaultpath;
matlabrc
status = savepath('<path to your Desktop>/pathdef.m')

The erroe log is:-

Error: File: pathdef.m Line: 17 Column: 3
Unexpected MATLAB operator.
Warning: MATLAB did not appear to successfully set the search path. To avoid this
warning the next time you start MATLAB, use
http://www.mathworks.com/access/helpdesk/help/techdoc/ref/pathdef.shtml
to help troubleshoot the "pathdef.m" file. To recover for this session
of MATLAB, type "restoredefaultpath;matlabrc".
Warning: Duplicate directory name: C:\Program Files (x86)\MATLAB\R2007a\toolbox\local.
Warning: Initializing Handle Graphics failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup,
which should be resolved as soon as possible.  Error detected was:
MATLAB:UndefinedFunction
Undefined function or method 'colordef' for input arguments of type 'double'.
> In matlabrc at 108
Warning: Initializing Java preferences failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup,
which should be resolved as soon as possible.  Error detected was:
MATLAB:UndefinedFunction
Undefined function or method 'usejava' for input arguments of type 'char'.
> In matlabrc at 133
??? Undefined function or variable 'ispc'.

Error in ==> reporterrorlogs>isComputeServer at 337
if ispc

Error in ==> reporterrorlogs at 14
if isdeployed || ~isInteractive || isComputeServer  || ~isJavaAvailable || ~getCheckForLogFiles

Error in ==> matlabrc at 269
reporterrorlogs

[per isakson]

Is this behaviour of Matlab related to any change in your computer system? Did you update any other program?

[Bhavnish]

No. I was using the same MATLAB from 5 months, It was working fine. I haven't updated any program.

[Walter Roberson]

First check

which -all pathdef

Then look at the first 20-ish lines of pathdef.m and see what is in line 17.

[Bhavnish]

which -all pathdef
C:\Program Files (x86)\MATLAB\R2007a\toolbox\local\pathdef.m
>> open pathdef.m

c:\program files (x86)\matlab\r2007a\toolbox\matlab\general;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\ops;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\lang;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\elmat;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\elfun;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\specfun;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\matfun;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\datafun;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\polyfun;', ...
c:\program files (x86)\matlab\r2007a\toolbox\matlab\funfun;', ...

[Walter Roberson]

Your pathdef does not appear to have the leading apostrophe for each string, and also appears to to be missing a leading

p = [...

(it is creating one long string that will be used at the end.)

[Bhavnish]

Do you mean to say that it should be something like below mentioned..

p = [...

%%% BEGIN ENTRIES %%%

'c:\program files (x86)\matlab\r2007a\toolbox\matlab\general;', ...

'c:\program files (x86)\matlab\r2007a\toolbox\matlab\ops;', ...

'c:\program files (x86)\matlab\r2007a\toolbox\matlab\lang;', ...

[Walter Roberson]

Yes. And it should end with

%%%END ENTRIES %%%
   ...
];

p = [userpath,p];

[Bhavnish]

Thanks a lot Walter. It is working fine now. Thanks a lot for your precious time, much appreciated.