want to plot CIE-CHART but have some problem

xyz_primaries = rgb2xyz([1 0 0; 0 1 0; 0 0 1]);
xyzMag = sum(xyz_primaries,2);
x_primary = xyz_primaries(:,1)./xyzMag;
y_primary = xyz_primaries(:,2)./xyzMag;
wp = whitepoint('D65');
wpMag = sum(wp,2);
x_whitepoint = wp(:,1)./wpMag;
y_whitepoint = wp(:,2)./wpMag;
plotChromaticity
hold on
scatter(x_whitepoint,y_whitepoint,36,'black')
scatter(x_primary,y_primary,36,'black')
plot([x_primary; x_primary],[y_primary; y_primary],'k')
hold off

this all my codes i got it from matlab home but even run it doesnt work. :( what i did wrong

[DGM]

What exactly is wrong with it?

It seems to run for me.

xyz_primaries = rgb2xyz([1 0 0; 0 1 0; 0 0 1]);

xyzMag = sum(xyz_primaries,2);
x_primary = xyz_primaries(:,1)./xyzMag;
y_primary = xyz_primaries(:,2)./xyzMag;
wp = whitepoint('D65');
wpMag = sum(wp,2);

x_whitepoint = wp(:,1)./wpMag;
y_whitepoint = wp(:,2)./wpMag;

plotChromaticity
hold on
scatter(x_whitepoint,y_whitepoint,36,'black')
scatter(x_primary,y_primary,36,'black')
plot([x_primary; x_primary],[y_primary; y_primary],'k')
hold off

[sevgul demir]

wp = whitepoint('D65'); this part has problem when i run the same codes

[Walter Roberson]

@sevgul demir

Does it say that whitepoint is not found? The function needs Image Processing Toolbox, but has been in that toolbox for a long time.

[DGM]

I don't think it's a toolbox issue, since rgb2xyz() is IPT-only as well. I'm going to assume that there's probably a conflict.

What is the result when you run the following in the command window?

which whitepoint -all

Also, if you're getting an error message, what is the exact error message?

[sevgul demir]

License checkout failed.

License Manager Error -10

so sad it was license problem :(

[Walter Roberson]

Your Image Processing Toolbox license has expired.

[sevgul demir]

:(