The ability to debug mask initialization code is not available in Simulink. A mask's initialization code will run when a dialog parameter is changed. However, when an error is encountered during this execution, no warning is displayed to the user.
To work around this issue, you can place the entire mask initialization code in a try-catch statement in order to display a warning, as demonstrated in the following code:
try
plot
test_var=1
catch
disp('Failed mask initialization')
end
If you would like to debug the initialization code, you can place the mask initialization code in a MATLAB file function and debug the code from there.
