Matlab 2018b mex can't find compiler, with Xcode 11 beta installed on Mac Mojave 10.14.5

I have Matlab 2018b and Xcode 11 beta installed on Mac Mojave 10.14.5

I run the following code in Matlab command line:

mex -v -setup C++

I got the following results:

I have run the following code in my Terminal:

sudo xcode-select -s /Applications/Xcode-Beta.app/Contents/Developer
sudo xcodebuild -license accept

It didn't help...

[Geoff Hayes]

Wanyu - what happens when you launch Xcode as an app? Are you prompted to accept its license?

[Wanyu Lei]

Hi Geoff, Yes. I have accepted its license after I launched Xcode. I still get the error...

Answer 1

[Maadhav Akula]

Xcode 11 beta is not supported in R2018b version of Matlab. For a list of supported compilers in R2018b,please refer to the link below:

https://in.mathworks.com/content/dam/mathworks/mathworks-dot-com/support/sysreq/files/system-requirements-release-2018b-supported-compilers.pdf