brew error `initialize’: Version value must be a string; got a NilClass ()

This error typically indicates that Homebrew’s version needs reinstall.

To resolve this issue, you can follow these steps:

1. Open the Terminal application.

2. Run the following command to uninstall Homebrew:

   ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
   

3. Run the following command to install Homebrew:

   /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
   

4. Run the following command to check if Homebrew has been installed correctly:

   brew doctor
   

Others

1. If the brew doctor command returns any errors, follow its instructions to fix them. Otherwise, run the following command to update Homebrew:

   brew update
   

2. If the update process encounters any errors, follow its instructions to fix them. Otherwise, run the following command to install any packages that need to be updated:

   brew upgrade
   

This should resolve the brew initialize: Version value must be a string; got a NilClass () error. If you still have issues, try diagnosing the problem using the brew doctor command.