ephEarthMo​onBarycent​er405.mat not found error although toolbox is installed

Hi

Although I have the Aerospace Blockset, Aerospace Toolbox and Ephemeris Data for Aerospace Toolbox installed; I receive the following error. Is this some kind of path problem? Or is the mat file really missing ?

The error message is:

The ephemeris data file "ephEarthMoonBarycenter405.mat" could not be found. check that the "Ephemeris Data for Aerospace Toolbox" support package is installed.

Answer 1

[Gökhan]

I have found the resolution to my earlier problem (I think).

What I realized is the following:

when you write a MATLAB script (*.m file) if you specify some local paths for your own (home made) files/folders, you would use addpath command for example:

addpath("Functions\");

this command however, as I understand, messes up with the built in paths and renders some of original MATLAB built-in paths invalid. That was the reason, when I opened a brand new MATLAB session, the scripts which did not have any "path" commands worked (hence finding the ephemeris file). As soon as I used the "path" command, the existing file could not be found. After some test and trial I found that adding my custom paths to the end of path list by the command:

addpath("Functions\",'-end');

worked fine.