Cannot install brew on Mojave with Xcode 10

Question

I can not install any brew packages on my mac with the following error info.

Installed on my Mac:

• macOS 10.14 Beta (18A293u)
• Xcode 9.3 (9E145)
• Xcode 10.0 beta (10L176w)

Type in brew install xxx. The output is:

Error: Your Xcode (9.3) is too outdated.
Please update to Xcode 10.0 (or delete it).
Xcode can be updated from
https://developer.apple.com/download/more/

Error: Xcode alone is not sufficient on Mojave.
Install the Command Line Tools:
xcode-select --install

But as I type in xcode-select --install, it says it is not available
Xcode select install error

Paths of two versions of Xcode on my Mac:

/Applications/Xcode-beta.app
/Applications/Xcode.app

And my config output:
xcode-select -p

/Applications/Xcode.app/Contents/Developer     

brew config

HOMEBREW_VERSION: 1.6.7
ORIGIN: https://github.com/Homebrew/brew
HEAD: 22e9fd772926e389e264cfb328c3d810b06759f9
Last commit: 5 days ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 854bb90b366169915849fc9a83e941b8883cea1f
Core tap last commit: 6 hours ago
HOMEBREW_PREFIX: /usr/local
CPU: octa-core 64-bit haswell
Homebrew Ruby: 2.3.6 =>./System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby
Clang: 9.1 build 902
Git: 2.15.1 => /Applications/Xcode.app/Contents/Developer/usr/bin/git
Curl: 7.54.0 => /usr/bin/curl
Java: 1.8.0_131
macOS: 10.14-x86_64
CLT: N/A
Xcode: 9.3
XQuartz: N/A

Solution 1

You will need to install both "Xcode 10.0 Beta" from https://developer.apple.com/download/ AND "Command Line Tools (macOS 10.14) for Xcode 10 Beta" from

https://download.developer.apple.com/Developer_Tools/Command_Line_Tools_macOS_10.14_for_Xcode_10/Command_Line_Tools_macOS_10.14_for_Xcode_10.dmg

Update contributed by other comments, after you installed "Command Line Tools", you will also need to execute the following command in your terminal.

open /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg

Solution 2

Beginning in 10.14, a new step is required to create the header files in /usr/include:

Install /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg

Source: The Xcode 10 release notes

Solution 3

After installing CLT, you can ask CLT to add header files to /usr/include, then homebrew will appropriate detect the Command Line Tools.

installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target /

Solution 4

After installing Xcode 10 Beta and Command Line Tools (macOS 10.14) for Xcode 10 Beta, I also changed the path for xcode-select to use the newly installed command line tools with:

sudo xcode-select -s /Applications/Xcode-beta.app/Contents/Developer     

Solution 5

At this time, Brew is not supporting macOS Mojave Beta.

(Type brew doctor to confirm that they are not accepting issues for Mojave yet)

See: https://apple.stackexchange.com/questions/327458/install-homebrew-packages-on-macos-mojave-beta

See: https://github.com/Homebrew/brew/issues/4295

View more solutions

Comments

[matt]

Upvoted because so well asked, but also voted to close because this should have been asked on AskDifferent or SuperUser.

[Weslie]

I did not try the hacking way, but installing CLTools works.Thanks very much. Unfortunately, I still failed in installing my brew package, like brew install octave. It says Error: You are using macOS 10.14. We do not provide support for this pre-release version. You may encounter build failures or other breakages. Please create pull-requests instead of filing issues.

[Erve1879]

This answer pointed me in the correct direction, but, having manually installed Xcode Beta 2 and the associated command line tools, I updated the code block above to return false NOT return true (you've already installed command line tools, so brew should not). I was then able to install homebrew as expected and installing packages with brew is also working correctly

[craig65535]

You can create the headers in /usr/include by installing /Library/Developer/CommandLineTools/Packages/macOS_SDK_heade‌​rs_for_macOS_10.14. pkg

[craig65535]

You can avoid modifying the script by installing /Library/Developer/CommandLineTools/Packages/macOS_SDK_heade‌​rs_for_macOS_10.14. pkg

[Bruno Muniz]

That's it. Cheers

[Irvin Chen]

yes we also found the same solution yesterday. thanks @craig65535

[CopsOnRoad]

I am using Xcode 10.0 beta 3 (on macOS 10.14) and there is no command line tools available for beta 3 version.