undefined function or variable workspacefunc

complete error message:

Too many input arguments.
Warning: MATLAB did not appear to successfully set the search path. To recover
for this session of MATLAB, type "restoredefaultpath;matlabrc". To find out how
to avoid this warning the next time you start MATLAB, type "docsearch problem
path" after recovering for this session. 
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 'usejava' for input arguments of type 'char'. 
> In matlabrc (line 141) 
Warning: Initializing MATLAB Graphics failed.
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 variable 'ismac'. 
> In hgrc (line 163)
  In matlabrc (line 147) 
Warning: Failed to add default profiler filters. 
> In matlabrc (line 156) 
Warning: Initializing 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:TooManyInputs
Too many input arguments. 
> In matlabrc (line 185) 
Error using feature
Too many input arguments.

Error in matlabrc (line 238)
if strcmpi(system_dependent('getpref','GeneralEchoOn'),'BTrue')

Undefined function or variable
'matlab.internal.environment.context.isMATLABOnline'.

>>

[madhan ravi]

https://www.mathworks.com/matlabcentral/answers/307356-why-does-matlab-return-an-error-using-eval-undefined-function-workspacefunc-for-arguments-of-typ#answer_239044 didn’t work either

[madhan ravi]

@steven lord any insights would be helpful

Answer 1

[madhan ravi]

finally I resolved the error :

https://in.mathworks.com/matlabcentral/answers/311671-can-t-run-matlab-restoredefaultpath-not-working#answer_242903

[Jan]

So the problem was a function called feature.m, which confused Matlab substantially?

[madhan ravi]

Yes exactly @Jan

Answer 2

[Jan]

Did you read and consider the error message?

 Warning: MATLAB did not appear to successfully set the search path. To recover
 for this session of MATLAB, type "restoredefaultpath;matlabrc". To find out how
 to avoid this warning the next time you start MATLAB, type "docsearch problem
 path" after recovering for this session.

So run the suggested fixing:

restoredefaultpath
matlabrc

Maybe you have to run Matlab with admin privileges to do this successfully.

If this fails, your Matlab installation has been destroyed. Either recover the files from your backup, or re-install Matlab. Find out, what happened before Matlab was damaged and avoid to do the same again.

[madhan ravi]

Thank you Jan, I reinstalled but didn’t work out. Will try the suggested when I get to my mac

[madhan ravi]

I tried as you suggested but it says

Error using eval
undefined function or variable workspacefunc of class 'struct'

[Matt J]

@madhan ravi

Did you do a clean re-install? In other words, did you delete the original Matlab installation folder before re-installing?

[madhan ravi]

yes @Matt J but then the error persists unfortunately

[madhan ravi]

@Jan

Maybe you have to run Matlab with admin privileges to do this successfully.

not sure how to do this in Mac

[Jan]

Did Matlab run before? If so, what did you change before it started to fail? Do you have a startup.m file, which destroys the path?

which startup -all

Does any of these files contain some brute code, which confuses the path?

[madhan ravi]

>> which startup -all
'startup' not found.

[madhan ravi]

error occurred after running this, right now I'm following according to this link to rectify the problem

[madhan ravi]

+1