Sorry, if this question has already been answered. I updated my system to Big Sur and followed the MacPorts migration instructions and updated Xcode to version 12.3.
However, when I try to build ports in MacPorts, I now get the following warnings. Warning: The macOS 11.1 SDK does not appear to be installed. Ports may not build correctly. Warning: You can install it as part of the Xcode Command Line Tools package by running `xcode-select --install’. What am I doing wrong?
