MathWorks Support Team

MathWorks

Last seen: 15 days ago | Active since 2009

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R2025a 以降の MATLAB で Java を有効にするにはどうすればよいですか?
MATLAB は R2025a 以降、従来の Java ベースのグラフィカルユーザーインターフェースを廃止し、JavaScript および HTML を用いた仕組みに移行しました。そのため、起動時に Java は自動的には読み込まれなくなっています。イン...

1 day ago | 0

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Answered
Why do I receive a "Previously accessible file <filename> is now inaccessible." error in MATLAB R2024b?
This issue occurs in MATLAB R2024b when too many file objects are open at the same time in your code. MATLAB has a limit on the ...

1 day ago | 0

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Why do I receive a "Previously accessible file <filename> is now inaccessible." error in MATLAB R2024b?
I am using MATLAB R2024b on Windows 11, and my workflow involves opening and closing multiple file objects in my code. However, ...

1 day ago | 1 answer | 0

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Can I access internal flash memory using Embedded Coder?
We do not support any block that directly allows users to write/read to/from the internal flash memory. To do this, you must use...

1 day ago | 0

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Can I access internal flash memory using Embedded Coder?
I am working on a project where I use Embedded Coder to deploy to a microcontroller.  I would like to store data in the mic...

1 day ago | 1 answer | 0

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Can lingering testhost.exe processes be prevented after C# unit tests using a MATLAB .NET library?
The persistence of the "testhost.exe" process after test completion likely indicates that the MATLAB Runtime environment, which ...

1 day ago | 0

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Answered
How can I enable Java in MATLAB R2025a and newer?
Since MATLAB's own graphical user interface is no longer Java-based starting in R2025a, but instead utilizes JavaScript and HTML...

2 days ago | 1

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Answered
Why will MATLAB not start up properly on my Windows based system?
If MATLAB is not launching properly, and you are not receiving any License Manager Errors, then you may be experiencing one of t...

2 days ago | 206

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Answered
How can I install the "Simulink Real-Time Target Support Package" and "Speedgoat I/O Blockset" in a Docker container?
To build a custom MATLAB Docker container, we typically recommend using the MATLAB Package Manager (mpm). However, installi...

2 days ago | 2

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Answered
Are there workaround to avoid "Cannot compute a stabilizing LQR gain" error?
The error message does not indicate a theoretical inconsistency; it is caused by numerical instability. When parameters such as ...

2 days ago | 0

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Question

Are there workaround to avoid "Cannot compute a stabilizing LQR gain" error?
I came across an error when I executed LQR command. A = 5000; B = 1e-6; Q = 1e+4; R = 1; [F,P,~] = lqr(A,B,Q,R); Error using...

2 days ago | 1 answer | 0

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Answered
MATLAB Drive アカウントのサインイン履歴を見るにはどうすればよいですか?
MathWorks では、MATLAB Drive に関するデバイス履歴や最終同期日時について、個々のユーザー単位でのレポート提供は行っておりません。 MATLAB Driveのサインイン履歴についてご不明な点がございましたら、MathWorks サポート...

3 days ago | 0

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MATLAB Drive アカウントのサインイン履歴を見るにはどうすればよいですか?
MATLAB Drive アカウントのサインイン履歴を確認し、いつ、どこからアクセスされたかを確認したいと考えています。この情報はどのように確認できますか？

3 days ago | 1 answer | 0

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Answered
なぜ永久版の MATLAB Student / Home License の更新やアドオン製品の購入はできないのですか?
2026年1月1日より、従来提供していた永久版の Student License および Home License は廃止され、年間サブスクリプション型の MATLAB and Simulink Student Suite および MATLAB and ...

3 days ago | 0

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Answered
How do I restore Speedgoat I/O Blockset after resetting my MATLAB path?
You can restore the Speedgoat I/O Blockset installation by doing the following: 1) Navigate to the Speedgoat Blockset installati...

4 days ago | 0

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Answered
Why do I receive "empty value" errors when optimizing with parallel computing in Antenna Designer R2025a?
This error occurs when parallel workers attempt to access a value than has not been initialized yet. The high computational load...

5 days ago | 0

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Question

Why do I receive "empty value" errors when optimizing with parallel computing in Antenna Designer R2025a?
I want to optimize my antenna using the "Optimize" function in Antenna Designer R2025a. My selected optimizer is "SADEA" and my ...

5 days ago | 1 answer | 0

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Why does my "Asynchronous Machine" block cause unreasonable measurements in later blocks in Simscape Electrical R2025a?
The unreasonable values produced by the measurement block is the result of running a model with "Asynchronous Machine" in discre...

5 days ago | 0

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Question

Why does my "Asynchronous Machine" block cause unreasonable measurements in later blocks in Simscape Electrical R2025a?
I want to run a discrete simulation with an "Asynchronous Machine" from the Simscape R2025a Specialized Power Systems library. H...

5 days ago | 1 answer | 0

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Why does MATLAB R2016b crash with no dialog after loading a custom DLL with "loadlibrary"?
This is expected behavior. MATLAB cannot guarantee a crash dialog or crash dumps when the crash originates from a third-par...

5 days ago | 0

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Why does MATLAB R2016b crash with no dialog after loading a custom DLL with "loadlibrary"?
I am using the function "loadlibrary" to load a DLL compiled from custom C code into MATLAB R2016b. When I call a function from ...

5 days ago | 1 answer | 0

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Are MathWorks products affected by CVE-2025-68161?
Log4j is a library of functions that provides certain utility to MathWorks products. It is comprised of multiple Java classes th...

5 days ago | 1

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Question

Are MathWorks products affected by CVE-2025-68161?
Are MathWorks products affected by CVE-2025-68161?

5 days ago | 1 answer | 0

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How do I locate the crash dump files generated by MATLAB?
For all releases: When MATLAB crashes, up to three log files may be generated with the following names: matlab_crash_dump.XXXX ...

5 days ago | 12

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Answered
How can I view the sign-in history of my MATLAB Drive Account?
MathWorks does not provide reporting at the individual user-level for device history or last‑synced details for MATLAB Drive. I...

5 days ago | 0

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Question

How can I view the sign-in history of my MATLAB Drive Account?
I want to check the sign‑in history for my MATLAB Drive account to confirm when or where it was accessed. How can I view this in...

5 days ago | 1 answer | 0

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Answered
Can I use multi-rate enabled subsystems for deployment on multitasking targets such as Simulink Real-Time?
Multi-rate enabled subsystems are not supported when multitasking is enabled via the "Treat each discrete rate as a separate tas...

5 days ago | 0

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Answered
How do I prevent deployed .NET Assembly from throwing Microsoft C++ exception: "xsd_binder::MalformedDocumentError" in C# VS driver project?
When "Enable native code debugging" is selected in your project settings, you may encounter the "xsd_binder::MalformedDocumentEr...

5 days ago | 1

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Answered
How do I troubleshoot installation and licensing issues with Simulink Coder and Embedded Coder?
C/C++ code generation features for Simulink models are only available if you have the following products installed and licensed:...

5 days ago | 2

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Answered
Does MathWorks provide support for the VeriStand Model Generation Support add-on?
The VeriStand Model Generation Support Package is developed by NI (National Instruments) and is external to MathWorks. You may w...

5 days ago | 1

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