执行vagrant init ubuntu/xenial64时缺失bcrypt_pbkdf gem报错求助

在C:\VM\first_project目录下执行vagrant init ubuntu/xenial64时触发以下错误：

C:\VM\first_project>vagrant init ubuntu/xenial64
Traceback (most recent call last):
6: from C:/HashiCorp/Vagrant/embedded/gems/2.3.1/gems/vagrant-2.3.1/bin/vagrant:105:in `<main>'
5: from C:/HashiCorp/Vagrant/embedded/gems/2.3.1/gems/vagrant-2.3.1/bin/vagrant:94:in `block in <main>'
4: from C:/HashiCorp/Vagrant/embedded/gems/2.3.1/gems/vagrant-2.3.1/bin/vagrant:94:in `each'
3: from C:/HashiCorp/Vagrant/embedded/gems/2.3.1/gems/vagrant-2.3.1/bin/vagrant:95:in `block (2 levels) in <main>'
2: from C:/HashiCorp/Vagrant/embedded/mingw64/lib/ruby/2.7.0/rubygems/core_ext/kernel_gem.rb:62:in `gem'
1: from C:/HashiCorp/Vagrant/embedded/mingw64/lib/ruby/2.7.0/rubygems/dependency.rb:323:in `to_spec'
C:/HashiCorp/Vagrant/embedded/mingw64/lib/ruby/2.7.0/rubygems/dependency.rb:311:in `to_specs': Could not find 'bcrypt_pbkdf' (~> 1.1) among 94 total gem(s) (Gem::MissingSpecError)
Checked in 'GEM_PATH=C:/HashiCorp/Vagrant/embedded/gems/2.3.1', execute `gem env` for more information

错误核心是Vagrant依赖的bcrypt_pbkdf gem（版本要求~>1.1）未在指定GEM_PATH中找到，可通过以下步骤解决：

• 使用Vagrant内置gem安装缺失包
  Vagrant自带独立Ruby环境，需调用其内置的gem工具安装，避免与系统gem冲突。执行以下命令：

  C:/HashiCorp/Vagrant/embedded/bin/gem install bcrypt_pbkdf -v '~>1.1'
  

  该命令会将符合版本要求的bcrypt_pbkdf安装到Vagrant的gem目录中。

• 验证修复效果
  回到C:\VM\first_project目录，重新执行：

  vagrant init ubuntu/xenial64
  

  若无报错则问题解决。

• 备选方案：重装Vagrant
  若上述方法无效，可能是Vagrant安装文件损坏。卸载当前2.3.1版本，重新下载对应版本的安装包完成安装后再尝试执行命令。

内容的提问来源于stack exchange，提问作者Ogundele Olumide