Fatal Error On Startup java exception occured: java.lang.​​NoClassDe​f​FoundErr​or​: Could not initialize class sun.awt.Win32FontManager

Hi, this error occurs after trying to start MATLAB R2019a (new installation) on a Windows 10 Home 64 Bit platform (16 RAM, Intel Core i7, enough free disk space available). How can this be fixed? Thanks

Answer 1

[Aditya Salveru]

Hi Michael,

This error might have occurred due to Improper installation of MATLAB.

In order to work around the issue, start MATLAB with 'nojvm' tag. Please follow the steps given below:

1. Open Command Prompt and navigate to the drive where you installed MATLAB.

2. Execute the following command to open MATLAB with 'nojvm' tag in Command Prompt:

matlab -nojvm

3. MATLAB Command Window will open up and then you can execute the following commands in it:

>>restoredefaultpath
>>rehash toolboxcache
>>savepath

4. Restart MATLAB normally.

If the above solution does not work, try reinstalling MATLAB.