搭建redis集群环境报错：usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require'

在搭建redis集群环境时，执行命令： ./redis-trib.rb create --replicas 1 192.168.56.101:6379 192.168.56.101:6380 192.168.56.101:6381 192.168.56.101:6382 192.168.56.101:6383 192.168.56.101:6384 192.168.56.101:6385 报错：

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