selfupdate fails with Xcode 10.1 on macOS 10.13 because it uses the 10.14 SDK which doesn't have i386 bits

[nikgervae]

I am on MacOS High Sierra 10.13.6, trying to update my ports. I ran sudo port selfupdate and then, I ran sudo port upgrade outdated and got this output:

Error: Unable to open port: invalid command name "compiler.cxx_standard"
Error: Follow https://guide.macports.org/#project.tickets to report a bug.

If I try sudo port upgrade installed, I instead get this error:

Error: Unable to open port: can't set "compiler.blacklist": invalid command name "compiler.command_line_tools_version"
Error: Follow https://guide.macports.org/#project.tickets to report a bug.

[jmroot (Joshua Root)]

If you are running MacPorts 2.5.4, that is the problem: it is not compatible with the current ports. You need to update to the current version, MacPorts 2.6.2. If selfupdate is not doing that for you, run sudo port -d selfupdate to see what is going wrong.

[nikgervae]

Output of sudo port -d selfupdate as requested by engineer

[nikgervae]

Output of sudo port -d selfupdate attached. It looks like the build system is trying to use the SDK for 10.14, even though I am running 10.13, and can't find the architecture i386.

[nikgervae]

And sure enough, when I go to /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/, the only SDK in that directory is for 10.14. I have no idea how that happened. Xcode's version is 10.1, and apparently I should be running version 8.3.3 or 9.0. I'll see if I can download one of those. Good thing Apple makes it SO EASY to do so....

[jmroot (Joshua Root)]

Xcode 10.1 should be fine on High Sierra, as long as you have the Command Line Tools installed, which should provide the 10.13 SDK.

[nikgervae]

No luck. I even tried reinstalling the command-line tools, and all I have is the 10.14 SDK. I'll see if a friend can access the developer login and get the installer package.

[jmroot (Joshua Root)]

The place to put the 10.13 SDK when you get it is /Library/Developer/CommandLineTools/SDKs/MacOSX10.13.sdk BTW.

[jmroot (Joshua Root)]

Although come to think of it, normally the CLTs should install /usr/include on 10.13, and if that exists, an SDK shouldn't be used at all.

[ryandesign (Ryan Carsten Schmidt)]

Agreed. On 10.13, it should not be trying to use an SDK; it should be using /usr/include. The fact that it's not suggests that you don't have /usr/include. Even though you said above that you already tried reinstalling the command-line tools, please try it again. Make sure you've downloaded "Command Line Tools (macOS 10.13) for Xcode 10.1" from ​https://developer.apple.com/download/more/?=macOS%2010.13

[nikgervae]

Safari had been failing repeatedly to even load the Apple developer page, but I switch to Firefox and finally managed to download and install the package. All is well now. Thanks for the URL to the item I needed to install, it saved some bother.