MATLAB-не открыть файл

function optoutput = opt_spring()
x0f =  [0.012 0.1  0.075 6];
xlbf = [0.003 0.05 0.050 3];
xubf = [0.020 0.25 0.400 15];
 
xsub = 1:4;       
x0 = x0f(xsub);        
xlb = xlbf(xsub);      
xub = xubf(xsub);       
 
system_state.obj = 0;
system_state.con = zeros(1,6);
system_state.econ = zeros(1,1);
system_state.x = x0+1;
 
options=optimset('Display','iter','Algorithm','sqp');
 
display_level = 0;
 
[xopt, fopt, flag, out, lambda]= ... 
    fmincon(@f_obj,x0,[],[],[],[],xlb,xub,@f_con,options);
 
hcs(xopt,3);
 
optoutput.xopt = xopt;              
optoutput.fopt = fopt;
optoutput.flag = flag;
optoutput.out = out;
optoutput.susp_out = system_state.output;
optoutput.lambda = lambda;

function obj = f_obj(x)
 
        update_obj(x);
        obj = system_state.obj;        
    end
    function [g,h] = f_con(x)
 
        update_obj(x); g = system_state.con; 
        h = system_state.econ;
    end

function   update_obj(x)
 
        if isequal(system_state.x,x) 
 
        else
 
            system_state.x = x; system_analysis();
        end
    end

 function system_analysis()
 
        x_temp = system_state.x;
        checkxsub(xsub,x_temp)
        output = hcs(x_temp,display_level,xsub);
        system_state.obj = output.obj;
        system_state.con = output.g;
        system_state.econ = output.h;
        system_state.output = output;
    end