MacOS Monterey

General Chat
1

Hello,

I recently updated my Mac to macOS Monterey (12.3.1) and tried to open root. However, I get the following error message:

warning: no such sysroot directory: ‘/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk’

C system headers (glibc/Xcode/Windows SDK) must be installed.

error: entry with relative path at the root level is not discoverable

{ ‘name’: ‘’, ‘type’: ‘directory’,

^~

Error in modulemap.overlay!

I am aware of the fact that questions like this have been asked here before, however their solutions didn’t work for me. I uninstalled Xcode 13.1 and installed Xcode 13 with its CLT. I deinstalled and reinstalled root via home-brew. I still get this error. Any suggestions?

2

Hi @wfelix ,
and welcome to the ROOT forum! Just to confirm, running xcode-select --install does not help either?

Cheers,
Enrico

3

Thanks for the quick answer. Sadly, doing this just gives me an error which tells me that the CLT are already installed. Should I update them (although I think root doesn’t work with the updated versions of Xcode)?

4

Yes, the latest ROOT version should work on Monterey, we even have an official package for it (you could try using that one instead of the homebrew package).

Unfortunately I am not sure what could cause the errors you are seeing. @henryiii would you know?

Cheers,
Enrico

5

How exactly do I install these on a Mac? Sorry, I haven’t done this before

6

Try:

xcode-select --reset
sudo xcodebuild -license

See Setup a New Mac - ISciNumPy.dev under “if it ever breaks”. That might help.

1 Like
7

If you rebuild from source there seems to be an issue discussed here. I was able to build root today with the procedure.

8

If I do this, I get the following error message:
xcode-select: error: tool ‘xcodebuild’ requires Xcode, but active developer directory ‘/Library/Developer/CommandLineTools’ is a command line tools instance

9

You need to install Xcode from the Mac App Store for that command to work. If you only have the command line tools, and not full Xcode, I don’t think it works - I’m not sure how to reset the command-line tools without Xcode. Maybe you can uninstall and reinstall? I believe we’ve seen ROOT work with only some warnings produced without Xcode installed, but I’m not sure - usually we’d recommend having Xcode.

10

There might be a way to use xcode-select --switch <dir>, not sure what dir it needs there, but that might be it. This is what my directory looks like:

ls -la /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs                                                                 Tue Apr 19 13:41:56 2022
total 0
drwxr-xr-x  4 root  wheel  128 Apr 11 14:18 ./
drwxr-xr-x  6 root  wheel  192 Apr 11 14:18 ../
drwxr-xr-x  7 root  wheel  224 Apr 11 14:17 MacOSX.sdk/
lrwxr-xr-x  1 root  wheel   10 Mar 14 23:30 MacOSX12.3.sdk@ -> MacOSX.sdk

Interestingly, that’s reversed from what I’d expect, I’d have thought the 12.3 path would have been the real path, and the unversioned path would be the symlink.