需要帮助在 Mac 上安装 Ruby 2.7.2

Question

我正在尝试在我的 Mac（带有所有更新的最新操作系统）上安装 Ruby 版本 2.7.2 并执行以下操作

brew update
brew upgrade rbenv ruby-build

进而

rbenv install 2.7.2
ruby-build: definition not found: 2.7.2

See all available versions with `rbenv install --list'.

If the version you need is missing, try upgrading ruby-build:

  brew update && brew upgrade ruby-build

所以我尝试按照上面的说明进行操作并得到这个

brew update && brew upgrade ruby-build
Already up-to-date.
Warning: ruby-build 20200926 already installed

Answer 1

你需要安装最新的 ruby-build

$ brew unlink ruby-build # remove STABLE version
$ brew install --HEAD ruby-build 
$ rbenv install -l | grep '2.7.2'
2.7.2


Only latest stable releases for each Ruby implementation are shown.
Use 'rbenv install --list-all' to show all local versions.