Unable to obtain dropdown menu in Control System Toolbox

Hi,

when in Control System Designer (opened via sisotool(sys) command on the command window), I try to add a new plot for a step forcing function (New Plot->New Step); after a new window (called "New Step") pops up, I choose from the dropdown menu "New input-output transfer response". This should give back some other dropdown menus but they do not appear to me: as soon as I select the option, error lines are displayed in the command window. I have attached them below.

I have tried to:

-reinstall Control System Toolbox add-on

-reinstall MATLAB (I have also tried downgrading from the 2022a version to the 2021b)

-remove all add-ons except for the Control System Toolbox one

Unfortunately neither options seem to work for me: therefore I'm asking help here.

Thank you in advance for your time ;)

Warning: Error occurred while executing the listener callback for event

ValueChanged defined for class matlab.ui.control.DropDown:

Error using toolpack.component.Icon (line 62)

Invalid default value for property 'HighlightIcon' in class

'ctrlguis.csdesignerapp.panels.internal.SignalListPanel':

The file C:\Program

Files\MATLAB\R2021b\toolbox\slcontrol\slctrlutil\resources\lintool\HighlightBlock_16.png

cannot be located.

Error in ctrlguis.csdesignerapp.panels.internal.IOTransferTC (line 25)

this.InputListPanel =

ctrlguis.csdesignerapp.panels.internal.SignalListPanel(Data,'Input','Input',this.Data.InputSignalLabel);

Error in ctrlguis.csdesignerapp.panels.internal.ResponseInputOutputTransferTC

(line 35)

this.IOTransferTC =

ctrlguis.csdesignerapp.panels.internal.IOTransferTC(this.CDD,this);

Error in

ctrlguis.csdesignerapp.dialogs.internal.SelectResponseToPlot/createIOTransferResponsePanel

(line 101)

this.ResponseDialogTC =

ResponseInputOutputTransferTC(this.ControlDesignData);

Error in

ctrlguis.csdesignerapp.dialogs.internal.SelectResponseToPlot/cbSwapResponsePanel

(line 462)

this.Widgets.IOTransferPanel =

createIOTransferResponsePanel(this);

Error in

ctrlguis.csdesignerapp.dialogs.internal.SelectResponseToPlot>@(es,ed)cbSwapResponsePanel(this)

(line 318)

'ValueChanged', @(es,

ed)cbSwapResponsePanel(this)),...

Error in

matlab.ui.control.internal.controller.ComponentController/executeUserCallback

(line 470)

notify(obj.Model, matlabEventName, matlabEventData);

Error in

matlab.ui.control.internal.controller.ComponentController/handleUserInteraction

(line 381)

obj.executeUserCallback(callbackInfo{:});

Error in matlab.ui.control.internal.controller.DropDownController/handleEvent

(line 55)

obj.handleUserInteraction('StateChanged', {'ValueChanged',

eventData, 'PrivateSelectedIndex', newSelectedIndex});

Error in

appdesservices.internal.interfaces.controller.AbstractController/handleProxyViewEvent

(line 279)

handleEvent(obj, src, event);

Error in

appdesservices.internal.interfaces.controller.AbstractController>@(src,event)handleProxyViewEvent(obj,src,event)

(line 207)

@(src,event) handleProxyViewEvent(obj, src, event));

Error in appdesservices.internal.interfaces.view.AbstractProxyView/notify

(line 117)

obj.notify@handle(varargin{:});

Error in

appdesservices.internal.peermodel.PeerNodeProxyView/handlePeerEventFromClient

(line 268)

notify(obj, 'GuiEvent', eventData);

Error in

appdesservices.internal.peermodel.PeerNodeProxyView>@(varargin)obj.handlePeerEventFromClient(varargin{:})

(line 81)

obj.PeerEventListener = addlistener(obj.PeerNode, 'peerEvent',

@obj.handlePeerEventFromClient);

Error in

viewmodel.internal.factory.ManagerFactoryProducer>@(src,event)callback(src,viewmodel.internal.factory.ManagerFactoryProducer.convertStructToEventData(event))

(line 105)

proxyCallback = @(src, event)callback(src, ...

Answer 1

[Balavignesh]

Hello Aniello,

It seems you're experiencing some trouble with the Control System Designer application. I've tried to replicate the problem on my side but haven't encountered the same issue.

I recommend updating MATLAB to the most recent version to see if that resolves the problem. Alternatively, you can open the Control System Designer by using the command `controlSystemDesigner` instead of `sisotool(sys)`. When I select the 'New input-output transfer' option, I am able to access the additional features.

If the problem continues, I suggest reaching out to the MathWorks Technical Support team for assistance. They are well-equipped to provide the necessary support.

You can contact them here: https://www.mathworks.com/support/contact_us.html

Thanks and regards,

Balavignesh