Unable to install brew (uninitialized constant URL::T (NameError))

[sudhakolavali]

Running any brew command threw this error. So I tried to uninstall and reinstall brew.
Installing brew doesnt succeed.

here is the log:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
Password:
==> This script will install:
/usr/local/bin/brew
/usr/local/share/doc/homebrew
/usr/local/share/man/man1/brew.1
/usr/local/share/zsh/site-functions/_brew
/usr/local/etc/bash_completion.d/brew
/usr/local/Homebrew

Press RETURN to continue or any other key to abort
==> Downloading and installing Homebrew...
HEAD is now at b8a93279f Merge pull request #8905 from jonchang/bintray-dont-error-on-matching-files
Traceback (most recent call last):
21: from /usr/local/Homebrew/Library/Homebrew/brew.rb:30:in <main>' 20: from /usr/local/Homebrew/Library/Homebrew/brew.rb:30:in require_relative'
19: from /usr/local/Homebrew/Library/Homebrew/global.rb:51:in <top (required)>' 18: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
17: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require' 16: from /usr/local/Homebrew/Library/Homebrew/cli/args.rb:3:in <top (required)>'
15: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require' 14: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
13: from /usr/local/Homebrew/Library/Homebrew/cli/named_args.rb:5:in <top (required)>' 12: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
11: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require' 10: from /usr/local/Homebrew/Library/Homebrew/cask/cask_loader.rb:4:in <top (required)>'
9: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require' 8: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
7: from /usr/local/Homebrew/Library/Homebrew/cask/cask.rb:5:in <top (required)>' 6: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
5: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require' 4: from /usr/local/Homebrew/Library/Homebrew/cask/dsl.rb:23:in <top (required)>'
3: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require' 2: from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in require'
1: from /usr/local/Homebrew/Library/Homebrew/cask/url.rb:7:in <top (required)>' /usr/local/Homebrew/Library/Homebrew/cask/url.rb:8:in class:URL': uninitialized constant URL::T (NameError)
Failed during: /usr/local/bin/brew update --force

[SMillerDev]

See #53

[sudhakolavali]

Not sure I understand the response there. How do I get a list of all system gems that I need to delete? Also, I am a newbie to brew.

[sudhakolavali]

Figured it out. Here are the steps for newbie's like me:

1. run gem env
2. get Gem paths and list gems in the path
3. gem uninstall --all
4. run install brew command

[Rylan12]

For anyone else who may come across this issue, I found that a full reinstallation of Homebrew was not necessary.

For me, simply installing and uninstalling the sorbet-runtime gem for system ruby was enough to solve the problem (possibly in conjunction with Homebrew/brew#8909)

[hoolatech]

Not work for me.