I already have the MSYS2 toolchain installed, and I have installed ruby interpreter. However, when I try to install rails (gem install rails), it gives me the following error.
current directory: D:/dev/msys2/mingw64/lib/ruby/gems/2.7.0/gems/nio4r-2.5.4/ext/nio4r
D:/dev/msys2/mingw64/bin/ruby.exe -I D:/dev/msys2/mingw64/lib/ruby/2.7.0 -r ./siteconf20201027-3052-13zckmd.rb extconf.rb
D:/dev/msys2/mingw64/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require': cannot load such file -- devkit (LoadError)
from D:/dev/msys2/mingw64/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
from extconf.rb:7:in `<main>'
extconf failed, exit code 1
What am I supposed to do?