`brew upgrade <package>`：“ <package>不能用任何可用的编译器构建”

Question

例如，我尝试运行brew upgrade ruby-build。

失败并显示错误：

CompilerSelectionError: ruby-build cannot be built with any available compilers.
Install GNU's GCC
  brew install gcc

当我跑步时brew install gcc，我得到：

Warning: Building gcc from source:
  The bottle needs the Xcode CLT to be installed.
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
Error: An exception occurred within a child process:
  CompilerSelectionError: gcc cannot be built with any available compilers.
Install GNU's GCC
  brew install gcc

如何升级ruby-build通过brew？

Answer 1

我运行了此命令，它现在可以工作：

$ xcode-select-安装