When trying to install the simulink support package for iOS, during the installation process, I get an error on the download of the third-party software, namely the OpenCV-iOS package. The other package downloads fine and also the support package download itself is ok. I've read all information in the link provided in the error message but nothing works for me. I'm not using a proxy and disabling my firewall won't help either. I'm using MacOS Sierra on a 2012 Macbook Pro retina and Matlab r2017b.