Matlab 2021b is not getting started on windows 10 - Fatal error on startup

Question

pratul gupta 2022-1-24

回答： Kumar Pallav 2022-1-26

Matlab 2021b is not getting started on windows 10 - Fatal error on startup. Following popup is coming:

Fatal error on startup

Java exception occured:

java.lang.NoClassDefFoundError.Could not initialise class com.mathworks.mde.desk.MLDesktop

following is Matlab environmental variable path- C:\Program Files\MATLAB\R2021b

Java path :- C:\Program Files\Java\jre1.8.0_321\bin

What should be done to solve the issue

ali hassan 2022-1-24

unistall matlab and install it again from website "getintopc"...follow the read me and enjoy.

Answer 1

Kumar Pallav 2022-1-26

Hi,

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.