GCM 2.6 fails to install on macOS Sonoma 14.7

[javier-garcia-sonarsource]

GCM 2.6 installation fails using Homebrew command

brew install --cask git-credential-manager

Error message:

==> Downloading https://formulae.brew.sh/api/cask.jws.json
##################################################################################################################################################### 100.0%
==> Downloading https://github.com/git-ecosystem/git-credential-manager/releases/download/v2.6.0/gcm-osx-arm64-2.6.0.pkg
Already downloaded: /Users/<username>/Library/Caches/Homebrew/downloads/4666f1223e9be016ab087da40f8fb50551654ddc553faeb68ca4635dd23021d3--gcm-osx-arm64-2.6.0.pkg
==> Installing Cask git-credential-manager
==> Running installer for git-credential-manager with sudo; the password may be necessary.
Password:
installer: Package name is Git Credential Manager
installer: Installing at base path /
installer: The install failed. (The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance. An error occurred while running scripts from the package “gcm-osx-arm64-2.6.0.pkg”.)
==> Purging files for version 2.6.0 of Cask git-credential-manager
Error: Failure while executing; `/usr/bin/sudo -u root -E LOGNAME=<username> USER= <username> USERNAME= <username> -- /usr/sbin/installer -pkg /opt/homebrew/Caskroom/git-credential-manager/2.6.0/gcm-osx-arm64-2.6.0.pkg -target /` exited with 1. Here's the output:
installer: Package name is Git Credential Manager
installer: Installing at base path /
installer: The install failed. (The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance. An error occurred while running scripts from the package “gcm-osx-arm64-2.6.0.pkg”.)

[mjcheetham]

Hmm.. I just tried this on macOS 14.7 (build 23H124) with GCM 2.6.0 and got a successful install.

mjcheetham@chronos ~ % brew install --cask git-credential-manager
==> Auto-updating Homebrew...
Adjust how often this is run with HOMEBREW_AUTO_UPDATE_SECS or disable with
HOMEBREW_NO_AUTO_UPDATE. Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).
==> Auto-updated Homebrew!
==> Updated Homebrew from 3f11462c14 to 4671af4bb9.
No changes to formulae or casks.

==> Downloading https://github.com/git-ecosystem/git-credential-manager/releases/download/v2.6.0/gcm-osx-arm64-2.6.0.pkg
Already downloaded: /Users/mjcheetham/Library/Caches/Homebrew/downloads/4666f1223e9be016ab087da40f8fb50551654ddc553faeb68ca4635dd23021d3--gcm-osx-arm64-2.6.0.pkg
==> Installing Cask git-credential-manager
==> Running installer for git-credential-manager with sudo; the password may be necessary.
Password:
installer: Package name is Git Credential Manager
installer: Installing at base path /
installer: The install was successful.
🍺  git-credential-manager was successfully installed!

Did you have any previous versions of GCM installed prior to this? What happens if you forcibly uninstall any previous versions, or attempted/incomplete installs and then reinstall?

brew update
brew uninstall --cask --force git-credential-manager
brew install --cask git-credential-manager

[javier-garcia-sonarsource]

Hi, and thanks for the quick response. Yes, I'm sure there wasn't any previous version installed. Anyway, I executed your suggested commands and it is still failing:

➜  ~ brew update
brew uninstall --cask --force git-credential-manager
==> Updating Homebrew...
Updated 1 tap (homebrew/core).
==> Outdated Formulae
python@3.12                                                                         xz

You have 2 outdated formulae installed.
You can upgrade them with brew upgrade
or list them with brew outdated.
==> Uninstalling Cask git-credential-manager
==> Running uninstall script /usr/local/share/gcm-core/uninstall.sh
Warning: uninstall script /usr/local/share/gcm-core/uninstall.sh does not exist; skipping.
==> Uninstalling packages with sudo; the password may be necessary:
==> Purging files for version 2.6.0 of Cask git-credential-manager

➜  ~ brew install --cask git-credential-manager
==> Downloading https://github.com/git-ecosystem/git-credential-manager/releases/download/v2.6.0/gcm-osx-arm64-2.6.0.pkg
Already downloaded: /Users/<user>/Library/Caches/Homebrew/downloads/4666f1223e9be016ab087da40f8fb50551654ddc553faeb68ca4635dd23021d3--gcm-osx-arm64-2.6.0.pkg
==> Installing Cask git-credential-manager
==> Running installer for git-credential-manager with sudo; the password may be necessary.
Password:
installer: Package name is Git Credential Manager
installer: Installing at base path /
installer: The install failed. (The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance. An error occurred while running scripts from the package “gcm-osx-arm64-2.6.0.pkg”.)
==> Purging files for version 2.6.0 of Cask git-credential-manager
Error: Failure while executing; `/usr/bin/sudo -u root -E LOGNAME=<user> USER=<user> USERNAME=<user> -- /usr/sbin/installer -pkg /opt/homebrew/Caskroom/git-credential-manager/2.6.0/gcm-osx-arm64-2.6.0.pkg -target /` exited with 1. Here's the output:
installer: Package name is Git Credential Manager
installer: Installing at base path /
installer: The install failed. (The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance. An error occurred while running scripts from the package “gcm-osx-arm64-2.6.0.pkg”.)

[mjcheetham]

Can you also try running the following commands and reporting back with the output please?

ls /usr/local/share/gcm-core
ls -l /usr/local/bin | grep git-credential-manager

Have you also tried installing via the pkg file rather than via Homebrew? Do you have the same issue (installation failing)?

https://github.com/git-ecosystem/git-credential-manager/releases/download/v2.6.0/gcm-osx-arm64-2.6.0.pkg

[javier-garcia-sonarsource]

Hi @mjcheetham.

➜  ~ sudo ls /usr/local/share/gcm-core
Password:
Atlassian.Bitbucket.dll                 System.IO.FileSystem.Watcher.dll            System.Security.Principal.Windows.dll
Avalonia.Base.dll                   System.IO.FileSystem.dll                System.Security.Principal.dll
Avalonia.Controls.dll                   System.IO.IsolatedStorage.dll               System.Security.SecureString.dll
Avalonia.DesignerSupport.dll                System.IO.MemoryMappedFiles.dll             System.Security.dll
Avalonia.Desktop.dll                    System.IO.Pipelines.dll                 System.ServiceModel.Web.dll
Avalonia.Dialogs.dll                    System.IO.Pipes.AccessControl.dll           System.ServiceProcess.dll
Avalonia.FreeDesktop.dll                System.IO.Pipes.dll                 System.Text.Encoding.CodePages.dll
Avalonia.Markup.Xaml.dll                System.IO.UnmanagedMemoryStream.dll         System.Text.Encoding.Extensions.dll
Avalonia.Markup.dll                 System.IO.dll                       System.Text.Encoding.dll
Avalonia.Metal.dll                  System.Linq.Expressions.dll             System.Text.Encodings.Web.dll
Avalonia.MicroCom.dll                   System.Linq.Parallel.dll                System.Text.Json.dll
Avalonia.Native.dll                 System.Linq.Queryable.dll               System.Text.RegularExpressions.dll
Avalonia.OpenGL.dll                 System.Linq.dll                     System.Threading.Channels.dll
Avalonia.Remote.Protocol.dll                System.Memory.dll                   System.Threading.Overlapped.dll
Avalonia.Skia.dll                   System.Net.Http.Json.dll                System.Threading.Tasks.Dataflow.dll
Avalonia.Themes.Fluent.dll              System.Net.Http.dll                 System.Threading.Tasks.Extensions.dll
Avalonia.Vulkan.dll                 System.Net.HttpListener.dll             System.Threading.Tasks.Parallel.dll
Avalonia.Win32.dll                  System.Net.Mail.dll                 System.Threading.Tasks.dll
Avalonia.X11.dll                    System.Net.NameResolution.dll               System.Threading.Thread.dll
Avalonia.dll                        System.Net.NetworkInformation.dll           System.Threading.ThreadPool.dll
GitHub.dll                      System.Net.Ping.dll                 System.Threading.Timer.dll
GitLab.dll                      System.Net.Primitives.dll               System.Threading.dll
HarfBuzzSharp.dll                   System.Net.Quic.dll                 System.Transactions.Local.dll
MicroCom.Runtime.dll                    System.Net.Requests.dll                 System.Transactions.dll
Microsoft.AzureRepos.dll                System.Net.Security.dll                 System.ValueTuple.dll
Microsoft.CSharp.dll                    System.Net.ServicePoint.dll             System.Web.HttpUtility.dll
Microsoft.Identity.Client.Extensions.Msal.dll       System.Net.Sockets.dll                  System.Web.dll
Microsoft.Identity.Client.dll               System.Net.WebClient.dll                System.Windows.dll
Microsoft.IdentityModel.Abstractions.dll        System.Net.WebHeaderCollection.dll          System.Xml.Linq.dll
Microsoft.VisualBasic.Core.dll              System.Net.WebProxy.dll                 System.Xml.ReaderWriter.dll
Microsoft.VisualBasic.dll               System.Net.WebSockets.Client.dll            System.Xml.Serialization.dll
Microsoft.Win32.Primitives.dll              System.Net.WebSockets.dll               System.Xml.XDocument.dll
Microsoft.Win32.Registry.dll                System.Net.dll                      System.Xml.XPath.XDocument.dll
NOTICE                          System.Numerics.Vectors.dll             System.Xml.XPath.dll
SkiaSharp.dll                       System.Numerics.dll                 System.Xml.XmlDocument.dll
System.AppContext.dll                   System.ObjectModel.dll                  System.Xml.XmlSerializer.dll
System.Buffers.dll                  System.Private.CoreLib.dll              System.Xml.dll
System.Collections.Concurrent.dll           System.Private.DataContractSerialization.dll        System.dll
System.Collections.Immutable.dll            System.Private.Uri.dll                  Tmds.DBus.Protocol.dll
System.Collections.NonGeneric.dll           System.Private.Xml.Linq.dll             WindowsBase.dll
System.Collections.Specialized.dll          System.Private.Xml.dll                  createdump
System.Collections.dll                  System.Reflection.DispatchProxy.dll         cs
System.CommandLine.dll                  System.Reflection.Emit.ILGeneration.dll         de
System.ComponentModel.Annotations.dll           System.Reflection.Emit.Lightweight.dll          es
System.ComponentModel.DataAnnotations.dll       System.Reflection.Emit.dll              fr
System.ComponentModel.EventBasedAsync.dll       System.Reflection.Extensions.dll            gcmcore.dll
System.ComponentModel.Primitives.dll            System.Reflection.Metadata.dll              git-credential-manager
System.ComponentModel.TypeConverter.dll         System.Reflection.Primitives.dll            git-credential-manager.deps.json
System.ComponentModel.dll               System.Reflection.TypeExtensions.dll            git-credential-manager.dll
System.Configuration.dll                System.Reflection.dll                   git-credential-manager.runtimeconfig.json
System.Console.dll                  System.Resources.Reader.dll             it
System.Core.dll                     System.Resources.ResourceManager.dll            ja
System.Data.Common.dll                  System.Resources.Writer.dll             ko
System.Data.DataSetExtensions.dll           System.Runtime.CompilerServices.Unsafe.dll      libAvaloniaNative.dylib
System.Data.dll                     System.Runtime.CompilerServices.VisualC.dll     libHarfBuzzSharp.dylib
System.Diagnostics.Contracts.dll            System.Runtime.Extensions.dll               libSkiaSharp.dylib
System.Diagnostics.Debug.dll                System.Runtime.Handles.dll              libSystem.Globalization.Native.dylib
System.Diagnostics.DiagnosticSource.dll         System.Runtime.InteropServices.JavaScript.dll       libSystem.IO.Compression.Native.dylib
System.Diagnostics.FileVersionInfo.dll          System.Runtime.InteropServices.RuntimeInformation.dll   libSystem.Native.dylib
System.Diagnostics.Process.dll              System.Runtime.InteropServices.dll          libSystem.Net.Security.Native.dylib
System.Diagnostics.StackTrace.dll           System.Runtime.Intrinsics.dll               libSystem.Security.Cryptography.Native.Apple.dylib
System.Diagnostics.TextWriterTraceListener.dll      System.Runtime.Loader.dll               libSystem.Security.Cryptography.Native.OpenSsl.dylib
System.Diagnostics.Tools.dll                System.Runtime.Numerics.dll             libclrgc.dylib
System.Diagnostics.TraceSource.dll          System.Runtime.Serialization.Formatters.dll     libclrjit.dylib
System.Diagnostics.Tracing.dll              System.Runtime.Serialization.Json.dll           libcoreclr.dylib
System.Drawing.Primitives.dll               System.Runtime.Serialization.Primitives.dll     libhostfxr.dylib
System.Drawing.dll                  System.Runtime.Serialization.Xml.dll            libhostpolicy.dylib
System.Dynamic.Runtime.dll              System.Runtime.Serialization.dll            libmscordaccore.dylib
System.Formats.Asn1.dll                 System.Runtime.dll                  libmscordbi.dylib
System.Formats.Tar.dll                  System.Security.AccessControl.dll           mscorlib.dll
System.Globalization.Calendars.dll          System.Security.Claims.dll              netstandard.dll
System.Globalization.Extensions.dll         System.Security.Cryptography.Algorithms.dll     pl
System.Globalization.dll                System.Security.Cryptography.Cng.dll            pt-BR
System.IO.Compression.Brotli.dll            System.Security.Cryptography.Csp.dll            ru
System.IO.Compression.FileSystem.dll            System.Security.Cryptography.Encoding.dll       tr
System.IO.Compression.ZipFile.dll           System.Security.Cryptography.OpenSsl.dll        uninstall.sh
System.IO.Compression.dll               System.Security.Cryptography.Primitives.dll     zh-Hans
System.IO.FileSystem.AccessControl.dll          System.Security.Cryptography.ProtectedData.dll      zh-Hant
System.IO.FileSystem.DriveInfo.dll          System.Security.Cryptography.X509Certificates.dll
System.IO.FileSystem.Primitives.dll         System.Security.Cryptography.dll

➜  ~ ls -l /usr/local/bin | grep git-credential-manager
lrwxr-xr-x  1 root  wheel  48 Oct  4 13:24 git-credential-manager -> /usr/local/share/gcm-core/git-credential-manager

Have you also tried installing via the pkg file rather than via Homebrew? Do you have the same issue (installation failing)?

Yes, same issue

[xtqqczze]

Hmm.. I just tried this on macOS 14.7 (build 23H124) with GCM 2.6.0 and got a successful install.

Works for me too.

ProductName:        macOS
ProductVersion:     14.7
BuildVersion:       23H124
==> Uninstalling Cask git-credential-manager
==> Running uninstall script /usr/local/share/gcm-core/uninstall.sh
Unconfiguring credential helper...
Deleting symlink...
No legacy symlink found.
Removing installation receipt...
Forgot package 'com.microsoft.gitcredentialmanager' on '/'.
Deleting application files...
==> Uninstalling packages with sudo; the password may be necessary:
==> Purging files for version 2.6.0 of Cask git-credential-manager
==> Downloading https://github.com/git-ecosystem/git-credential-manager/releases/download/v2.6.0/gcm-osx-arm64-2.6.0.pkg
Already downloaded: /Users/xtqqczze/Library/Caches/Homebrew/downloads/4666f1223e9be016ab087da40f8fb50551654ddc553faeb68ca4635dd23021d3--gcm-osx-arm64-2.6.0.pkg
==> Installing Cask git-credential-manager
==> Running installer for git-credential-manager with sudo; the password may be necessary.
installer: Package name is Git Credential Manager
installer: Installing at base path /
installer: The install was successful.
🍺  git-credential-manager was successfully installed!

[mjcheetham]

@javier-garcia-sonarsource can you try running the following command first before retrying installation?

sudo xcodebuild -license accept

It's possible that you may need to accept the Xcode license agreement to the installation script to complete successfully. The script calls in to Homebrew, which itself calls some of the Xcode CLI tools. We have seen this issue in other versions: https://github.com/git-ecosystem/git-credential-manager/issues/1708

[javier-garcia-sonarsource]

Sure. I got this error response:

➜  ~ sudo xcodebuild -license accept

Password:
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance

[mjcheetham]

How about sudo xcrun cc? This should try to run GCC, via Xcode's command line tooling, which should also trigger the prompt (if needed).

[javier-garcia-sonarsource]

I ran sudo xcrun cc and nothing happened.

➜  ~ sudo xcrun cc
cc: error: no input files

[mjcheetham]

Hmm.. how strange.. the failure is coming from the postinstall script that is run after install.

The commands/programs that are run are:

• /usr/bin/which
• /bin/ln
• mkdir
• sudo
• brew

Could you try running the following and see if any of them fail?

/usr/bin/which brew

/bin/ln

mkdir -p /tmp/test123

sudo uname

brew --version

[javier-garcia-sonarsource]

Hi, all the commands worked fine:

➜  ~ /usr/bin/which brew
/opt/homebrew/bin/brew
➜  ~ /bin/ln
usage: ln [-s [-F] | -L | -P] [-f | -i] [-hnv] source_file [target_file]
       ln [-s [-F] | -L | -P] [-f | -i] [-hnv] source_file ... target_dir
       link source_file target_file
➜  ~ mkdir -p /tmp/test123
➜  ~ sudo uname
Password:
Darwin
➜  ~ brew --version
Homebrew 4.4.0

[mjcheetham]

ls -l /bin/bash

?

Short of this, I'll need to update the postinstall script to add extra logging and try and find where the error is occuring.

In the meantime, you can workaround the installation failure by manually extracting the tarball for macOS:

# Download
curl -L -o gcm-osx-arm64-2.6.0.tar.gz https://github.com/git-ecosystem/git-credential-manager/releases/download/v2.6.0/gcm-osx-arm64-2.6.0.tar.gz

# Create directory and extract
sudo mkdir -p /usr/local/share/gcm-core/
sudo tar -xzf gcm-osx-arm64-2.6.0.tar.gz -C /usr/local/share/gcm-core/
sudo chmod +x /usr/local/share/gcm-core/git-credential-manager
sudo chmod +x /usr/local/share/gcm-core/uninstall.sh

# Create symlink
sudo /bin/ln -Fs /usr/local/share/gcm-core/git-credential-manager /usr/local/bin/git-credential-manager

# Configure GCM with Git
/usr/local/bin/git-credential-manager configure

[javier-garcia-sonarsource]

➜  ~ ls -l /bin/bash
-r-xr-xr-x  1 root  wheel  1310352 Sep  5 11:17 /bin/bash

[javier-garcia-sonarsource]

I could install it following your commands. One question, is it supposed to need sudo access to run it?

[mjcheetham]

is it supposed to need sudo access to run it?

Yes, the root user/sudo is required to install via the pkg or Homebrew (which uses the pkg underneath) in order to install to the /usr/local/share directory, and to create the symlink in /usr/local/bin.

If you want to install GCM without root access, you'll just need to extract the tar.gz file to somewhere you have write access to, chmod to set the execute bits on the git-credential-manager binary, and then run ./git-credential-manager configure.

[xtqqczze]

➜  ~ sudo xcodebuild -license accept

Password:
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance

Same output on my machine.

[xtqqczze]

➜  ~ sudo xcrun cc
cc: error: no input files

This is expected output when no file is specified.

[dscho]

So maybe we could redirect stderr in the post-install script, and upon failure of that command check for some tell-tale of the situation, and in this instance simply ignore the failure?

[zluckytraveler]

I too am having this exact same issue with both homebrew and package install.

[Genyus]

One of my students is also able to reproduce this, running Sonoma 14.5

[Genyus]

After much digging, I was able to resolve this on my student's system. Turns out SIP was disabled for some unknown reason; re-enabling fixed this and another seemingly unconnected issue with her JDK installation.

To check its status on your machine, run csrutil status. If the output shows that SIP is disabled, run sudo csrutil clear and reboot, then try installing again.

[dscho]

Turns out SIP was disabled for some unknown reason; re-enabling fixed this and another seemingly unconnected issue with her JDK installation.

What is SIP, and how did you enable it?

[Chuck1sn]

OS 13.7.1 same issue

[dscho]

Turns out SIP was disabled for some unknown reason; re-enabling fixed this and another seemingly unconnected issue with her JDK installation.

What is SIP, and how did you enable it?

@Genyus ☝️

[xtqqczze]

Turns out SIP was disabled for some unknown reason; re-enabling fixed this and another seemingly unconnected issue with her JDK installation.

What is SIP, and how did you enable it?

System Integrity Protection (SIP) is a macOS security mechanism that enforces kernel-level restrictions on the root user and restricts modification of protected system directories and processes, ensuring only Apple-signed code can alter critical system files.

[Genyus]

What is SIP, and how did you enable it?

@dscho I provided the steps to enable it in the comment you replied to. Run csrutil status to check if it's enabled on your system. If it's disabled, run sudo csrutil clear and reboot.

[Genyus]

After some testing on my own machine (M1 Max running Sequoia 15.1), the SIP thing might be a red herring. I uninstalled GCM, then disabled SIP and attempted to reinstall. I was able to reproduce the same error message, so at that point, I thought I had confirmed it as a cause — but after re-enabling SIP, the installer continued to fail.

I attempted the manual installation instructions provided by @mjcheetham and received "Permission denied" errors on my ~/.gitconfig file when executing the /usr/local/bin/git-credential-manager configure command.

I checked the permissions and found root had ownership, along with 600 permissions applied. I ran chown and chmod to restore default permissions, then tried again and this time, the installation was successful. I uninstalled GCM and disabled SIP again. Checked the permissions hadn't changed and attempted a reinstall, which ran successfully.

Without better logging, it's probably impossible to know whether everyone encountering this has the same root cause, but .gitconfig permissions may be at least one investigation target.