i'm getting followig errors when options are used in ga solver

main function

clear all

clc

nvars=3;

lb=[6 2 2];

ub=[100 4 4];

options = gaoptimset('PlotFcns',{@gaplotbestf,@gaplotmaxconstr},'Display','iter');

[x, fval,exitflag,output,population]=ga(@my_fun,nvars,[],[],[],[],lb,ub,options)

error when using options

Error using functionHandleOrCell (line 13)

The constraint function must be a function handle.

Error in validate (line 156)

      [nonlcon,NonconFcnArgs] = functionHandleOrCell('NonconFcn',nonlcon);

Error in gacommon (line 72)

[options,nvars,FitnessFcn,NonconFcn] =
validate(options,type,nvars,fun,nonlcon,user_options);

Error in ga (line 319)

[x,fval,exitFlag,output,population,scores,FitnessFcn,nvars,Aineq,bineq,Aeq,beq,lb,ub, ...

Error in start (line 7)

[x, fval,exitflag,output,population]=ga(@my_fun,nvars,[],[],[],[],lb,ub,options)

Answer 1

[Jan]

Is "The constraint function must be a function handle." a valuable hint?