To debug this, start by executing:

type -a git

and

echo $PATH

In OP's case, running the above commands gave the following output respectively:

git is /usr/bin/git

git is /usr/local/bin/git

and

/usr/local/opt/[email protected]/sbin

/usr/local/opt/[email protected]/bin

/Applications/MAMP/bin/php/php7.1.8/bin

/usr/bin

/bin

/usr/sbin

/sbin

/usr/local/bin

/usr/local/autoconf

/opt/X11/bin

/usr/local/share/dotnet

~/.dotnet/tools

/Library/Frameworks/Mono.framework/Versions/Current/Commands

/Applications/Xamarin Workbooks.app/Contents/SharedSupport/path-bin

/Applications/Android Studio.app/Contents/plugins/flutter/bin

(the output from the command lines are formatted for clarity)

Now, run the following commands (using absolute path) to check if git package is actually installed:

/usr/bin/git --version

and

/usr/local/bin/git --version

The above gave the following output, respectively:

active developer path does not exist

and

git version 2.21.0

This indicates that Homebrew installed copy is still present in the system. However, Xcode/system installed copy (which should take precedence due to $PATH variable configuration) wasn't accessible because developer path couldn't be found.

To resolve the issue and to use the Xcode/system installed copy of git, run:

xcode-select --reset

This will resolve the error.

To use the latest version of Git, install the same via Homebrew by running:

brew install git

and set the PATH variable so that /usr/local/bin takes precedence over /usr/bin.

To debug this, start by executing:

type -a git

and

echo $PATH

In OP's case, running the above commands gave the following output respectively:

git is /usr/bin/git
git is /usr/local/bin/git

and

/usr/local/opt/[email protected]/sbin
/usr/local/opt/[email protected]/bin
/Applications/MAMP/bin/php/php7.1.8/bin
/usr/bin
/bin
/usr/sbin
/sbin
/usr/local/bin
/usr/local/autoconf
/opt/X11/bin
/usr/local/share/dotnet
~/.dotnet/tools
/Library/Frameworks/Mono.framework/Versions/Current/Commands
/Applications/Xamarin Workbooks.app/Contents/SharedSupport/path-bin
/Applications/Android Studio.app/Contents/plugins/flutter/bin

(in the above output is formatted for readability by replacing : with newline)

Now, run the following commands (using absolute path) to check if git package is actually installed:

/usr/bin/git --version

and

/usr/local/bin/git --version

The above gave the following output, respectively:

active developer path does not exist

and

git version 2.21.0

This indicates that Homebrew installed copy is still present in the system. However, Xcode/system installed copy (which should take precedence due to $PATH variable configuration) wasn't accessible because developer path couldn't be found.

To resolve the issue and to use the Xcode/system installed copy of git, run:

xcode-select --reset

This will resolve the error.

To use the latest version of Git, install the same via Homebrew by running:

brew install git

and set the PATH variable so that /usr/local/bin takes precedence over /usr/bin.

To debug this, start by executing:

type -a git

followed by

echo $PATH

In OP's case, running the above commands gave the following output respectively:

git is /usr/bin/git

git is /usr/local/bin/git

and

/usr/local/opt/[email protected]/sbin

/usr/local/opt/[email protected]/bin

/Applications/MAMP/bin/php/php7.1.8/bin

/usr/bin

/bin

/usr/sbin

/sbin

/usr/local/bin

/usr/local/autoconf

/opt/X11/bin

/usr/local/share/dotnet

~/.dotnet/tools

/Library/Frameworks/Mono.framework/Versions/Current/Commands

/Applications/Xamarin Workbooks.app/Contents/SharedSupport/path-bin

/Applications/Android Studio.app/Contents/plugins/flutter/bin

(formatting for simplified reading)

Now, running the following commands (using absolute path) to check if git package is actually installed:

/usr/bin/git --version

and

/usr/local/bin/git --version

gave the following, respectively:

active developer path does not exist

and

git version 2.21.0

indicating that while Homebrew installed copy is still present with the current latest version. However, Xcode/system installed copy which should take precedence due to $PATH variable configuration wasn't accessible because developer path couldn't be found.

To resolve the issue and use the Xcode/system installed copy, run:

xcode-select --reset

This will resolve the error.

To use the latest version of Git, install the same via Homebrew by running:

brew install git

and set the PATH variable so that /usr/local/bin takes preference over /usr/bin.

To debug this, start by executing:

type -a git

and

echo $PATH

In OP's case, running the above commands gave the following output respectively:

git is /usr/bin/git

git is /usr/local/bin/git

and

/usr/local/opt/[email protected]/sbin

/usr/local/opt/[email protected]/bin

/Applications/MAMP/bin/php/php7.1.8/bin

/usr/bin

/bin

/usr/sbin

/sbin

/usr/local/bin

/usr/local/autoconf

/opt/X11/bin

/usr/local/share/dotnet

~/.dotnet/tools

/Library/Frameworks/Mono.framework/Versions/Current/Commands

/Applications/Xamarin Workbooks.app/Contents/SharedSupport/path-bin

/Applications/Android Studio.app/Contents/plugins/flutter/bin

(the output from the command lines are formatted for clarity)

Now, run the following commands (using absolute path) to check if git package is actually installed:

/usr/bin/git --version

and

/usr/local/bin/git --version

The above gave the following output, respectively:

active developer path does not exist

and

git version 2.21.0

This indicates that Homebrew installed copy is still present in the system. However, Xcode/system installed copy (which should take precedence due to $PATH variable configuration) wasn't accessible because developer path couldn't be found.

To resolve the issue and to use the Xcode/system installed copy of git, run:

xcode-select --reset

This will resolve the error.

To use the latest version of Git, install the same via Homebrew by running:

brew install git

and set the PATH variable so that /usr/local/bin takes precedence over /usr/bin.