Fatal error on startup in 2023a version

Gettng a fatal error on MATLAB 2023a startup.

Attached the error screenshot.

Java exception occurred:

java.lang.NoClassDefFoundError: could not initialize class sun.security.util.signaturefileverifier

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Anyone faced similar issue and resolved it?

[Catalytic]

Not me, but Tech Support are the best people to talk to for dealing with startup failures.

Answer 1

[Rohit Kulkarni]

Hi Akshat,

This error can occur when MATLAB get's corrupted during the installation process.

To resolve this issue, disable any security software or allow exceptions for the MATLAB application and then perform an clean installation of MATLAB.

Clean installation of MATLAB:

https://in.mathworks.com/matlabcentral/answers/131519-how-do-i-perform-a-clean-installation-of-matlab

If you still experience this issue after performing a clean installation, obtain the crash logs and contact the Installation & Licensing Support team.

Locate the crash dump files generated by MATLAB:

https://in.mathworks.com/matlabcentral/answers/100816-how-do-i-locate-the-crash-dump-files-generated-by-matlab

Contact the support team:

http://www.mathworks.com/support/contact_us/

Hope it helps!