我输入 gem和sass的都有问题？老师看下，为啥，

babel还没安装好，这又安装个这东西，又出错跟着教程都会出错误，怎么不一样呢？

还能不能继续往下学了！！！！！！！！！！！！！！！！！！！！！！

C:\Users\Administrator>gem -v

Traceback (most recent call last):

23: from <internal:gem_prelude>:5:in `<internal:gem_prelude>'

22: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'

21: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'

20: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/gems/2.5.0/gems/did_you_mean-1.2.0/lib/did_you_mean.rb:5:in `<top (required)>'

19: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'

18: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'

17: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/gems/2.5.0/gems/did_you_mean-1.2.0/lib/did_you_mean/spell_checkers/name_error_checkers.rb:1:in `<top (required)>'

16: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'

15: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'

14: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/gems/2.5.0/gems/did_you_mean-1.2.0/lib/did_you_mean/spell_checkers/name_error_checkers/class_name_checker.rb:2:in `<top (required)>'

13: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:39:in `require'

12: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:128:in `rescue in require'

11: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems.rb:213:in `try_activate'

10: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1063:in `find_by_path'

9: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1063:in `find'

8: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1063:in `each'

7: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1064:in `block in find_by_path'

6: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:39:in `require'

5: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:128:in `rescue in require'

4: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems.rb:213:in `try_activate'

3: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1063:in `find_by_path'

2: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1063:in `find'

1: from D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1063:in `each'

D:/新装软件/ruby/Ruby25-x64/lib/ruby/2.5.0/rubygems/specification.rb:1064:in `block in find_by_path': uninitialized constant Gem::BundlerVersionFinder (NameError)

C:\Users\Administrator>gem install sass