(R2016.a) Undefined function or variable 'gaoptimset'.

I am using ga and have the following block included in my program

%Start with default options

options = gaoptimset;

%%Modify some parameters

options = gaoptimset(options,'PopInitRange' ,[LB;UB]);

options = gaoptimset(options,'PopulationSize',PopulationSize);

options = gaoptimset(options,'Generations',Generations);

options = gaoptimset(options,'StallGenLimit' ,inf);

options = gaoptimset(options,'StallTimeLimit',inf);

options = gaoptimset(options,'MutationFcn' ,@mutationadaptfeasible);

options = gaoptimset(options,'TolCon',1e-6);

options = gaoptimset(options,'TolFun',1e-6);

options = gaoptimset(options,'Display' ,'iter');

options = gaoptimset(options,'EliteCount',PopulationSize/10);

options = gaoptimset(options,'CrossoverFraction' ,0.6);

% options = gaoptimset(options,'Vectorized' ,'on');

What worked out several times. Now I get the error

Undefined function or variable 'gaoptimset'. Any ideas to solve it?

Answer 1

[Star Strider]

You could have a path problem.

Run these lines from the Command Window or a script:

restoredefaultpath 
rehash toolboxcache

If you still have problems after that, Contzct Support (link).

[Janosch Fagaschewski]

Starting Matlab the command window shows

Warning: Name is nonexistent or not a directory: optimfun

Seems to be a path issue, but I have no clue how to solve it...

[Star Strider]

The first option to solve path problems is to run the commands I quoted. Did you run them? What was the result?

Answer 2

[Janosch Fagaschewski]

Fixed it with an update to R2017b. Regards.