由于kernel_require错误，无法运行人偶apply命令

Question

我正在使用AWS RHEL实例Red Hat Enterprise Linux Server 7.5（Maipo）。 Puppet已成功安装。但是，命令

sudo puppet apply /etc/puppet/manifests/site.pp

导致错误：

/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- puppet/util/command_line (LoadError)
from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require'
from /bin/puppet:7:in `<main>'