Field Strings are not accepted

Hello,

i try this tutorial:

https://de.mathworks.com/help/physmod/sm/ug/model-planet-orbit-due-to-gravity.html

and my problem is, that in my simulation the values, as i defined here:

% Sun

Sun.M = 1.99e30;

Sun.R = 6.96e8*SunScaling;

Sun.RGB = [1 0.5 0];

Sun.Px = 5.5850e+08;

Sun.Py = 5.5850e+08;

Sun.Pz = 5.5850e+08;

Sun.Vx = -1.4663;

Sun.Vy = 11.1238;

Sun.Vz = 4.8370;

cannot be adopted.

The settings in Spherical Solid remain.

When i change the values in the Spherical Solid by hand, it works...

Maby someone can help me =)