O brew install package pede para instalar ferramentas de linha de comando de um caminho que não existe

Eu estraguei minhas ferramentas de linha de comando. Eu já os instalei, também instalei a versão beta 2 macOS 10 do site de desenvolvedores da Apple porque o comando brew install putty estava me pedindo para remover o Xcode ou atualizá-lo. (Aqui é onde eu errei, em vez de instalar uma versão atualizada do Xcode.app, eu instalei as ferramentas de linha de comando Xcode 10.14)

Então agora o comando brew install putty dá o erro

Error: Your Xcode (9.4.1) is too outdated.
Please update to Xcode 10.0 (or delete it).
Xcode can be updated from
  https://developer.apple.com/download/more/

Error: The Command Line Tools header package must be installed on Mojave.
The installer is located at:
  /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg

quando eu corro xcode-select --install Ele diz que as ferramentas de linha de comando já estão instaladas.

Se eu remover o Xcode.app, ele mostrará que:

xcrun: error: active developer path ("/Applications/Xcode.app/Contents/Developer") does not exist
Use `sudo xcode-select --switch path/to/Xcode.app` to specify the Xcode that you wish to use for command line developer tools, or use `xcode-select --install` to install the stan
dalone command line developer tools.
See `man xcode-select` for more details.
Error: The Command Line Tools header package must be installed on Mojave.
The installer is located at:
  /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg
Error: Git must be installed and in your PATH!
xcrun: error: active developer path ("/Applications/Xcode.app/Contents/Developer") does not exist
Use `sudo xcode-select --switch path/to/Xcode.app` to specify the Xcode that you wish to use for command line developer tools, or use `xcode-select --install` to install the stan
dalone command line developer tools.
See `man xcode-select` for more details.
Error: The Command Line Tools header package must be installed on Mojave.
The installer is located at:
  /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg

e o caminho mencionado nos erros acima para o pkg arquivo para eu instalar não existe