error during run command

this is the error iam getting while running validationcurve.m file

Unrecognized parameter name 'GradObj'.

! Submission failed: Error using optimset (line 255)

Unrecognized parameter name 'GradObj'. Please see the optimset reference page in the documentation for a list of acceptable option parameters. Link to reference page.

Function: optimset

FileName: /opt/mlsedu/matlab/R2019a/toolbox/matlab/optimfun/optimset.m

LineNumber: 255

ii have read in one of links if we get gradobj error the we have to check toolbox which is installed .

all the toolbox given below is already installed then also iam getting the error

GradObj is not a valid option to optimset() unless a license is present for one of the following products:

Optimization Toolbox

Curve Fitting Toolbox

Statistics and Machine Learning Toolbox

Computer Vision Toolbox

System Identification Toolbox

submit

Warning from path (line 109)

matlabpath([cPath1{:} cPath2{:}]);

line 109 matlabpath([cPath1{:} cPath2{:}]); ////this is the exact line of path.m which is throwing error

/opt/mlsedu/matlab/R2019a/toolbox/matlab/optimfun/optimset.m

ANYONE WHO CAN FIX THIS WILL ALSO FIX ERROR FOR OPTIMSET.M

[copyrighted code for path.m removed -- WDR]

[Walter Roberson]

All of those toolboxes might be installed, but do you have them licensed?

What shows up for

which -all optimproblem

This appears to be a continuation of https://www.mathworks.com/matlabcentral/answers/469832-error-based-on-optimset-m-line-255

[Walter Roberson]

Optimization Toolbox

Curve Fitting Toolbox

Statistics and Machine Learning Toolbox

Computer Vision Toolbox

Those are already installed with MATLAB Online. You would not have had that error if you were using MATLAB Online.

System Identification Toolbox

That one is not supported by MATLAB Online, but you are not using it.

[Kavidha Krishnamoorthi]

IAM using MATLAB online Walter and in still getting error