Why do I receive License Manager Error -8?

I am install matlab 2019a. But error occupy why do i receive license manager eror -8

Answer 1

[Anton Kogios]

Have you looked this up online? MathWorks has already answered this exact (word-for-word!) question: Why do I receive License Manager Error -8?

From my searches online, you may be trying to use a cracked version of MATLAB, in which case I'm not sure that MATLAB Answers is the best place to ask...