MATLAB: I have problem with optimoptions

fminconMATLABoptimization

When I use optimoptions with any solver name, I get the following error message:

Error using optimoptions (line 124)
Invalid default value for property 'OptionsStore' in class 'optim.options.Fmincon':
Not enough input arguments.

Looks like it does not recognize any solver. Do you know how to fix this? Thank you!

It is possible that you need to reinstall Optimization Toolbox. Or perhaps the following less drastic alternative will suffice:

clear all
rehash toolboxcache

Alan Weiss

MATLAB mathematical toolbox documentation

%if true
  % code
% end
opts = optimoptions(@fmincon,'Algorithm','interior-point');

Try function handle for passing solver name

fsolve is the Optimization Toolbox, not the Global Optimization Toolbox.

Also be sure you have licensed the product: you will get the same error message if the software is installed by not considered licensed.