I am having this error while I try to install WATIR 7.0 Beta 3 >ruby hi.rb <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- watir (LoadError) from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from hi.rb:1:in `<main>' >Exit code: 1 >ruby hi.rb C:/Ruby30/lib/ruby/gems/3.0.0/gems/childprocess-4.1.0/lib/childprocess/windows.rb:6:in `rescue in <top (required)>': FFI is a required pre-requisite for Windows or posix_spawn support in the ChildProcess gem. Ensure the `ffi` gem is installed. If you believe this is an error, please file a bug at http://github.com/enkessler/childprocess/issues (ChildProcess::MissingFFIError) from C:/Ruby30/lib/ruby/gems/3.0.0/gems/childprocess-4.1.0/lib/childprocess/windows.rb:3:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/childprocess-4.1.0/lib/childprocess.rb:209:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/selenium-webdriver-4.0.0.beta4/lib/selenium/webdriver.rb:20:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/selenium-webdriver-4.0.0.beta4/lib/selenium-webdriver.rb:20:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/watir-7.0.0.beta4/lib/watir.rb:1:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:160:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:160:in `rescue in require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:149:in `require' from hi.rb:1:in `<main>' <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- ffi (LoadError) from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/childprocess-4.1.0/lib/childprocess/windows.rb:4:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/childprocess-4.1.0/lib/childprocess.rb:209:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/selenium-webdriver-4.0.0.beta4/lib/selenium/webdriver.rb:20:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/selenium-webdriver-4.0.0.beta4/lib/selenium-webdriver.rb:20:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from C:/Ruby30/lib/ruby/gems/3.0.0/gems/watir-7.0.0.beta4/lib/watir.rb:1:in `<top (required)>' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:160:in `require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:160:in `rescue in require' from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:149:in `require' from hi.rb:1:in `<main>' <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- watir (LoadError) from <internal:C:/Ruby30/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from hi.rb:1:in `<main>' >Exit code: 1
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