Answered
Why don't my live Simulink signal plots update correctly in MATLAB App Designer R2025b?
The issue is caused by the following line in the "startupFcn": app.Simulation = simulation(app.model) This line needs to be rem...

19 days ago | 0

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Question

Why don't my live Simulink signal plots update correctly in MATLAB App Designer R2025b?
I created an app in App Designer to plot the results of my Simulink model. However, I have noticed that the plot doesn't update ...

19 days ago | 1 answer | 0

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answer

Answered
Why does MATLAB crash with the crash log containing "grooveex.dll"?
The crash is caused by a third-party application that installs a DLL named "grooveex.dll". This DLL is an application extension ...

19 days ago | 0

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Answered
How can I update or reactivate my Campus-Wide License?
If the Campus-Wide License you are using has been renewed, you will need to update your license information to continue usi...

19 days ago | 17

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Answered
How to protect intellectual property (IP) with an FMU exported from Simulink?
The FMI standard does not specify anything related to IP protection; however, "Standalone" FMU exports provide some degree of IP...

19 days ago | 2

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Answered
How can I use a custom STM32F4xx board with the new "Embedded Coder Support Package for STMicroelectronics STM32 Processors" ?
To configure your model for a STM32F4xx based board, open the Configuration Parameters. Go to Hardware Implementation > ...

19 days ago | 0

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Answered
How can I run my Simscape model on real-time hardware such as Speedgoat and Simulink Real-Time (SLRT)?
We have this documentation page with some best practices for preparing Simscape models for use with real-time hardware:Real-Time...

19 days ago | 0

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Answered
Classification Learner gives different results every time
The reason for the different results is by using k-fold cross-validation method. When starting a new session in the Classificat...

19 days ago | 1

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Answered
How do I avoid an error “Unable to set the header file property... to 'Rte_Type.h'" in a multi-instance AUTOSAR model?
Yes, this validation error is expected for multi-instance AUTOSAR components. Rationale: In a multi-instance AUTOSAR component,...

20 days ago | 0

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Question

How do I avoid an error “Unable to set the header file property... to 'Rte_Type.h'" in a multi-instance AUTOSAR model?
I am using AUTOSAR Blockset to configure my AUTOSAR component for multi-instantiation (ModelReferenceNumInstancesAllowed = Mult...

20 days ago | 1 answer | 0

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Answered
Why does a "Discrete‑Time Integrator" block in enabled and triggered subsystems only output its initial condition in MATLAB R2024b?
This behavior is expected when a "Discrete‑Time Integrator" block is placed inside enabled and triggered subsystems with certain...

20 days ago | 0

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Question

Why does a "Discrete‑Time Integrator" block in enabled and triggered subsystems only output its initial condition in MATLAB R2024b?
I am using MATLAB R2024b and created a "Discrete‑Time Integrator" block inside an enabled subsystem, which itself is inside a tr...

20 days ago | 1 answer | 0

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Answered
Personal License Passcode (PLP) やライセンスファイルとは何ですか？またどのように取得しますか？
Personal License Passcode（PLP）は、Windows マシン上で MATLAB R2007b 以前をインストールするために使用される、固有の番号列です。R2008a 以降では、PLP は MATLAB のインストールには使用されな...

20 days ago | 0

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Answered
Why do I get the error message "System target file 'speedgoat.tlc' cannot be found"?
In R2024a and later, Simulink Real-Time (SLRT) uses the "speedgoat.tlc" system target file for Speedgoat hardware. This system t...

20 days ago | 0

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Answered
Why does MATLAB R2025b crash when opening Simulink through MATLAB MCP Core Server on Windows with Codex?
Why does MATLAB Crash? This behavior occurs in MATLAB R2025b on Windows when MATLAB is launched through the MATLAB MCP Core Serv...

20 days ago | 0

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Answered
Why am I unable to generate graphics on some non‑Windows systems when using MATLAB Online?
MATLAB Online uses WebGL to render high‑performance and interactive graphics. In the past, Chromium‑based browsers (such as Goog...

20 days ago | 0

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Answered
활성화 도중 오류 354가 발생합니다.
이 오류는 라이선스의 연간 컴퓨터 재지정(이전) 횟수를 초과했을 때 발생합니다. 라이선스를 새 컴퓨터로 이전하려면 다음 재지정 가능 시점까지 기다려야 합니다. 그동안 다른 컴퓨터에 이미 MATLAB이 설치되어 있다면, Login ...

20 days ago | 0

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Answered
Why does an output variable from a MATLAB Function block not update a model variable with the same name?
This is expected behavior. Like regular MATLAB functions, MATLAB Function blocks in Simulink have their own internal workspace. ...

21 days ago | 0

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Answered
Why do I receive MathWorks Licensing Error 5008 or 5009?
Please follow the troubleshooting steps from the MATLAB Answer linked below. Why do I receive the error "This email is not linke...

21 days ago | 0

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Answered
Why do I see multiple MATLAB Desktop issues when using unsupported Windows versions with MATLAB R2025a and later?
In MATLAB R2025a and later, issues can occur when the MATLAB Desktop is run on unsupported Windows versions for that release, s...

21 days ago | 0

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Question

Why do I see multiple MATLAB Desktop issues when using unsupported Windows versions with MATLAB R2025a and later?
I am running MATLAB R2025a, R2025b, or a later release on Windows, and I experience multiple issues with the MATLAB Desktop. Fo...

21 days ago | 1 answer | 0

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Answered
Am I able to use my internal AI Engine in conjunction with MATLAB MCP?
Yes, you can use MATLAB with internal AI engines like Claude or Qwen via the MATLAB MCP Core Server, but the LLM ...

22 days ago | 0

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Question

Am I able to use my internal AI Engine in conjunction with MATLAB MCP?
We would like to use MATLAB for coding in conjunction with one of our internal AI engines (Claude, Qwen3-Coder, etc.). Is this p...

22 days ago | 1 answer | 0

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Answered
What is a Personal License Passcode (PLP) or a license file and how do I obtain one for my MATLAB license?
A Personal License Passcode (PLP) is a unique string of numbers that enables the installation of MATLAB R2007b and earlier on a ...

22 days ago | 0

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Answered
How do I purchase a new Home/Student License?
In order to purchase a MATLAB License, you must log in to your MathWorks Account.  Please note that Home Use and Student Ve...

22 days ago | 0

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Answered
Why is my USB device not recognized by the Speedgoat target computer, with an error saying "USB serial port error"?
This error message means that the device has not been found. Some debugging tips are as follows: 1) Double-check your hardware s...

22 days ago | 0

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Answered
USB serial communication support with Speedgoat & Simulink Real-Time (SLRT)
Starting in R2021b, Simulink Real-Time has introduced support for UART communication with external hardware when connected via U...

23 days ago | 0

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Answered
Simulink might crash if the %WINDIR% environment variable in Windows is not set
Make sure the %WINDIR% environment variable is set. When using Agentic AIs, you might need to pass this environment variable to ...

23 days ago | 0

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Question

Simulink might crash if the %WINDIR% environment variable in Windows is not set
MATLAB is crashing on my machine when I open a Simulink model using the MATLAB MCP Core Server. The generated stack trace is sim...

23 days ago | 1 answer | 0

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Answered
Why are there no instructions for the Simscape Multibody Link and Creo?
The missing section of documentation is currently under investigation by MathWorks.   In the interim, the relevant ins...

23 days ago | 0

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