Xcode アップデートで Android Studio から git が使えない

MacOSのアップデートの後, AndroidStudio にてこんなダイアログ.

cannot_git

Can't start Git: /usr/bin/git
Probably the path to Git executable is not valid.

見えてない?


$ which git
/usr/bin/git

権限?


$ brew doctor

Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.

Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!

Warning: You have an outdated version of /usr/bin/install_name_tool installed.
This will cause binary package installations to fail.
This can happen if you install osx-gcc-installer or RailsInstaller.
To restore it, you must reinstall OS X or restore the binary from
the OS packages.

Warning: Git could not be found in your PATH.
Homebrew uses Git for several internal functions, and some formulae use Git
checkouts instead of stable tarballs. You may want to install Git:
  brew install git

Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.

Warning: You have not agreed to the Xcode license.
Builds will fail! Agree to the license by opening Xcode.app or running:
    xcodebuild -license

Warning: Some keg-only formula are linked into the Cellar.
Linking a keg-only formula, such as gettext, into the cellar with
`brew link <formula>` will cause other formulae to detect them during
the `./configure` step. This may cause problems when compiling those
other formulae.

Binaries provided by keg-only formulae may override system binaries

git は入っているので, おもむろに


$ sudo xcodebuild -license

...
9.12    Entire Agreement; Governing Language
This Agreement constitutes the entire agreement between the parties with respect to the use of the SDK licensed hereunder and supersedes all prior understandings regarding such subject matter. This Agreement may be modified only: (a) by a written amendment signed by both parties, or (b) to the extent expressly permitted by this Agreement (for example, by Apple by written or email notice to You). Any translation of this Agreement is done for local requirements and in the event of a dispute between the English and any non-English version, the English version of this Agreement shall govern. If You are located in the province of Quebec, Canada, the following clause applies: The parties hereby confirm that they have requested that this Agreement and all related documents be drafted in English. Les parties ont exigé que le présent contrat et tous les documents connexes soient rédigés en anglais.
...

By typing 'agree' you are agreeing to the terms of the software license agreements. Type 'print' to print them or anything else to cancel, [agree, print, cancel]          

agree

$ brew update

あ, いけたわ.

Git_executed_successfully_and_Preferences