Brand new installation of High Sierra, installed Xcode from App Store, opened it, installed MacPorts from installer.
Then: $ sudo port selfupdate ---> Updating MacPorts base sources using rsync MacPorts base version 2.5.4 installed, MacPorts base version 2.5.4 downloaded. ---> Updating the ports tree ---> MacPorts base is already the latest version The ports tree has been updated. To upgrade your installed ports, you should run port upgrade outdated $ port -v installed No ports are installed. $ sudo port -v -N install qalculate-gtk ---> Computing dependencies for qalculate-gtk.....................................Error: Unable to determine location of a macOS SDK. Error: Unable to execute port: can't read "configure.sdkroot": Unable to determine location of a macOS SDK. This is happening because the command line tools aren’t installed, and there is no installed SDK that is named MacOSX10.13.sdk: $ pwd /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs $ ls MacOSX.sdk MacOSX10.14.sdk and indeed, making a fake link: $ sudo ln -s MacOSX.sdk MacOSX10.13.sdk and away the build goes. Ken
