unable to detect a class file to instantiate object

My file structure is like this

+LLSPP

TMS_2023.m

trial.m

some other files..

in 'trial.m' I have a class definition with a constructor

I am using this in TMS_2023.m

import LLSPP.*

and later trying to instantiate the class

T1 = LLSPP.trial(input1, input2)

but I keep getting this :

Unable to resolve the name 'LLSPP.trial'.

I also tried

T1 = LLSPP.trial.trial(input1, input2)

and

T1 = trial.trial(input1, input2)

and

T1 = trial(input1, input2)

they give the same error

Answer 1

[Swaraj]

Hi Udaykaran,

I understand that you are not able to access the constructor/class from a script written in the same package. I tried to regenerate the issue. I created the following file structure.

The content of the files are as follows:

File : trial.m

classdef trial
    properties
        Value;
    end
   methods
       function obj = trial(input1,input2)
         obj.Value = input1+input2;
      end
   end
end

File : TMS_2023.m

import LLSPP.*
LLSPP.trial(10,10);

On running the script “TMS_2023.m”, I was able to access the constructor.

The steps that you followed should work fine. Please try the following steps because of which you might face this error.

1. To make sure that MATLAB is loading the class correctly you can run the command in the command window: clear classes
2. Note that LLSPP needs to be on your MATLAB search path, or the full path to LLSPP.trial should be specified.

If the above steps do not help, please check if you have written the “trial” class properly. Go through the following documentation for reference.

Creating a Simple Class - MATLAB & Simulink (mathworks.com)

Hope it helps!!.