GUI installation problem

[bguerr]

A rookie one:

I'm having trouble running the GUI on Matlab 2018b (with all toolboxes required).
Topotoolbox and TAK are on the same folder, in my matlab path.

When trying to run the GUI, this error appears:

Error using TAK0x2D2App/startApp (line 86)
Error defining property 'Image' of class 'TAK':
Class named 'matlab.ui.control.Image' is undefined or does not support property
validation.

Error in TAK0x2D2App (line 48)
startApp(obj)

Error in appinstall.internal.runapp>execute (line 116)
out = evalin('caller', [script ';']);

Error in appinstall.internal.runapp>runapp13a (line 95)
outobj = execute(fullfile(appinstalldir, [wrapperfile 'App.m']));

Error in appinstall.internal.runapp>preamble18b (line 60)
appobj = runapp13a(appinstalldir);

Error in appinstall.internal.runapp (line 13)
out = preamble18b(appinstalldir);

Error in matlab.apputil.run (line 45)
appinstall.internal.runapp(appName, appLocation);

[bguerr]

And also, this comes as a warning when opening matlab:

Warning: Name is nonexistent or not a directory:
C:\Users\bguer\AppData\Roaming\MathWorks\MATLAB Add-Ons\Apps\TAK -
1\GitHub\TopoTools
Warning: Name is nonexistent or not a directory:
C:\Users\bguer\AppData\Roaming\MathWorks\MATLAB Add-Ons\Apps\TAK -
1\GitHub\topotoolbox\GIStools
Warning: Name is nonexistent or not a directory:
C:\Users\bguer\AppData\Roaming\MathWorks\MATLAB Add-Ons\Apps\TAK -
1\GitHub\topotoolbox\utilities
Warning: Name is nonexistent or not a directory:
C:\Users\bguer\AppData\Roaming\MathWorks\MATLAB Add-Ons\Apps\TAK -
1\MATLAB\TAKgui_app

[amforte]

As the GUI was built in 2019b, it's possible this is just an issue with backwards compatibility. How were you trying to run the app, i.e. did you install it (and it should then appear in the APPS toolbar)?