The error message you’re encountering is quite generic and can arise from various causes. Refer to these troubleshooting steps from MathWorks Support Team to see which one applies to your case:
- Unexpected Error when installing MathWorks products: https://www.mathworks.com/matlabcentral/answers/489806-why-do-i-see-the-error-something-unexpected-occurred-when-installing-mathworks-products
- Extraction error during installation: https://www.mathworks.com/matlabcentral/answers/175705-why-do-i-get-an-extract-error-when-installing-mathworks-products
Additionally, ensure that all product requirements for installing the Communications Toolbox are met. You can review these here: https://www.mathworks.com/support/requirements/communications-toolbox.html
Also, try restarting the installer as suggested by the error message if you haven’t done that already.
