Matlab 2019b installer does not install on Mac OS Catalina

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Roozbeh Yousefzadeh
Roozbeh Yousefzadeh 2019-12-12
回答： Stefan Liebich 2020-1-29
After upgrading to Mac OS Catalina, I have had troubles with Matlab 2019a. Unfortanetly, the installer for Matlab 2019b does not work either. Here is the error I get when I run the 2019b installer.
Error : unable to connect to host.
sun.security.validator.ValidatorException: PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to find
valid certification path to requested target
Should I remove the 2019a installation, before installing 2019b?
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Johan Van Audekerke
Johan Van Audekerke 2020-1-21
Can someone help please same problem here on a windows server 2016 trying to install Matlab R2019b
Walter Roberson
Walter Roberson 2020-1-21
https://stackoverflow.com/questions/21076179/pkix-path-building-failed-and-unable-to-find-valid-certification-path-to-requ

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回答（2 个）

SaiDileep Kola
SaiDileep Kola 2020-1-22
Hi Roozbeh,
It is not necessary to remove the 2019a installation to install the 2019b version but the issue might be because of license after the OS upgradation, you can contact your sales representative to know your license terms, in case you don’t know you can follow this link
https://www.mathworks.com/support/contact_us.html
Stefan Liebich
Stefan Liebich 2020-1-29
Installing the Java Runtime Environment helped for me. You can get it, e.g., here:
https://www.java.com/de/download/manual.jsp
I chose the offline version

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