我如何解决 MissingSpecError

如何解决我如何解决 MissingSpecError

运行 rails new test-app 时，我遇到了这个错误。

Traceback (most recent call last):
    22: from /Users/user/.rvm/gems/ruby-2.7.0/bin/ruby_executable_hooks:24:in `<main>'
    21: from /Users/user/.rvm/gems/ruby-2.7.0/bin/ruby_executable_hooks:24:in `eval'
    20: from /Users/user/.rvm/rubies/ruby-2.7.0/bin/rails:23:in `<main>'
    19: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems.rb:295:in `activate_bin_path'
    18: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems.rb:295:in `synchronize'
    17: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems.rb:296:in `block in activate_bin_path'
    16: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1373:in `activate'
    15: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `activate_dependencies'
    14: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `each'
    13: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1405:in `block in activate_dependencies'
    12: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1373:in `activate'
    11: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `activate_dependencies'
    10: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `each'
     9: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1405:in `block in activate_dependencies'
     8: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1373:in `activate'
     7: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `activate_dependencies'
     6: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `each'
     5: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1405:in `block in activate_dependencies'
     4: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1373:in `activate'
     3: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `activate_dependencies'
     2: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1391:in `each'
     1: from /Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/specification.rb:1402:in `block in activate_dependencies'
/Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/2.7.0/rubygems/dependency.rb:311:in `to_specs': Could not find 'nokogiri' (>= 1.5.9) among 96 total gem(s) (Gem::MissingSpecError)
Checked in 'GEM_PATH=/Users/user/.rvm/gems/ruby-2.7.0:/Users/user/.rvm/rubies/ruby-2.7.0/lib/ruby/gems/2.7.0',execute `gem env` for more information

我尝试重建 xcode 实用程序。不幸的是，这不起作用。谷歌搜索给了我很多结果，但不是正确的。我能做什么？

编辑：正如汤姆·罗德正确指出的那样gem install nokogiri 的伎俩。我认为通过安装实用程序这个问题不会发生。以及事实上，我现在在这台机器上开发了几年，从来没有手动安装 gem。无论如何它现在有效，所以这是关闭的

解决方法

gem install nokogiri 因为缺少此依赖项。