how do i fix Initialize Variables error when starting quadcopter model in simulink?

So when i run asbQuadcopterStart in command line, i get errors in Initialize Variables. I clicked continue and when i run the simulation i get the following errors.

I'm not quiet sure how to fix this issue. Please help!

[Ankur Bose]

Can you click on the 'Details' button and see what is the issue that is causing Initialize Variables to fail?

[woong-ji choi]

this is what i get

Answer 1

[Lishein Wijesundara Mudiyanselage]

I am having the same issue, did you find a fix?

[Marwan Soliman]

I had the same issue, make sure you have the 'Signal Processing Toolbox' installed.

[Aabhash Bhandari]

@Marwan Soliman this helped. Thanks!

Answer 2

[Birdman]

Use File->Model Properties->Model Properties->Callbacks->PreLoadFcn to initialize variables automatically every time you open a Simulink model.

[woong-ji choi]

what do i write in the PreLoadFcn?

Answer 3

[Sergio Tamayo]

Which version of MATLAB are you using?

[woong-ji choi]

i'm using 2018a

[Sergio Tamayo]

Did you install the PARROT support package in your machine?