Brew: Failure on any install after update

[andrewvaughan]

• [x] ran brew update and can still reproduce the problem?
• [x] ran brew doctor, fixed all issues and can still reproduce the problem?
• [x] ran brew config and brew doctor and included their output with your issue?

What you were trying to do (and why)

Install the newly updated little-snitch package (but have tested with several).

What happened (include command output)

Running any command - including brew config and brew doctor results in Ruby errors.

andrew:Mail andrew$ brew install little-snitch
Traceback (most recent call last):
    17: from /usr/local/Homebrew/Library/Homebrew/brew.rb:23:in `<main>'
    16: from /usr/local/Homebrew/Library/Homebrew/brew.rb:23:in `require_relative'
    15: from /usr/local/Homebrew/Library/Homebrew/global.rb:13:in `<top (required)>'
    14: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    13: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    12: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/core_ext/object/blank.rb:3:in `<top (required)>'
    11: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    10: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
     9: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/map.rb:3:in `<top (required)>'
     8: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
     7: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
     6: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/synchronization.rb:5:in `<top (required)>'
     5: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:30:in `load_native_extensions'
     4: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:30:in `each'
     3: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:30:in `block in load_native_extensions'
     2: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:62:in `try_load_c_extension'
     1: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- concurrent/concurrent_ruby_ext (LoadError)
    28: from /usr/local/Homebrew/Library/Homebrew/brew.rb:23:in `<main>'
    27: from /usr/local/Homebrew/Library/Homebrew/brew.rb:23:in `require_relative'
    26: from /usr/local/Homebrew/Library/Homebrew/global.rb:13:in `<top (required)>'
    25: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    24: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    23: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.1/lib/active_support/core_ext/object/blank.rb:3:in `<top (required)>'
    22: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    21: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    20: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/map.rb:3:in `<top (required)>'
    19: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    18: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    17: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/synchronization.rb:5:in `<top (required)>'
    16: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:30:in `load_native_extensions'
    15: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:30:in `each'
    14: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:30:in `block in load_native_extensions'
    13: from /usr/local/Homebrew/Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/concurrent-ruby-1.1.5/lib/concurrent/utility/native_extension_loader.rb:62:in `try_load_c_extension'
    12: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:34:in `require'
    11: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:123:in `rescue in require'
    10: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems.rb:212:in `try_activate'
     9: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/specification.rb:1041:in `find_by_path'
     8: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/specification.rb:1041:in `find'
     7: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/specification.rb:1041:in `each'
     6: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/specification.rb:1042:in `block in find_by_path'
     5: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/bundler_version_finder.rb:39:in `compatible?'
     4: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/bundler_version_finder.rb:7:in `bundler_version'
     3: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/bundler_version_finder.rb:22:in `bundler_version_with_reason'
     2: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/bundler_version_finder.rb:68:in `lockfile_version'
     1: from /usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/bundler_version_finder.rb:80:in `lockfile_contents'
/usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/bundler_version_finder.rb:80:in `pwd': No such file or directory - getcwd (Errno::ENOENT)

What you expected to happen

An installation

Step-by-step reproduction instructions (by running brew commands)

brew update
brew install <any package>
brew cask install <any package>

[MikeMcQuaid]

Run brew update-reset.

[andrewvaughan]

This still occurs after running the provided command.

[MikeMcQuaid]

The error message is identical? If not: what is the output? What version of macOS are you on?

/usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.3/lib/ruby/2.6.0/rubygems/bundler_version_finder.rb:80:in `pwd': No such file or directory - getcwd (Errno::ENOENT)

This also looks like your current directory does not exist. Run cd ~ and run all commands again.

[MikeMcQuaid]

Finally: what is the output of git -C $(brew --repo) status

[ecbrodie]

If this helps at all, I was running into a similar problem just now with concurrent/map not being found when I ran brew update. I can also confirm that after running brew update-reset, all my usual Homebrew commands such as brew update and brew upgrade were working again as expected.