how to solver this error? "Undefined variable "slctrlguis" or class "slctrlgui​s.pidtuner​.getInstan​ce".

I am trying to tune PID controller using Simulink control Design. But it is prompting the error message as below.

How do I Fix this?

"Undefined variable "slctrlguis" or class "slctrlguis.pidtuner.getInstance".

[Arkadiy Turevskiy]

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Answer 1

[Arkadiy Turevskiy]

please submit a help request.