Knife reporting configuration issue

Hi,
I have workstation setup in oracle user. Now, I am trying to configure knife-reporting. I performed below steps.

/usr/bin/gem install knife-reporting-0.5.0.gem Successfully installed knife-reporting-0.5.0 Parsing documentation for knife-reporting-0.5.0 WARNING: Unable to pull data from 'https://rubygems.org/': Errno::ECONNREFUSED: Connection refused - connect(2) (https://rubygems.org/specs.4.8.gz) 1 gem installed

Then, I downloaded specs.4.8.gz to the chef-repo directory. But, when I try to execute ‘knife runs list’ it refuses to recognize the command.
Can somebody help me on this?

chef gem list | grep knife*

does it show knife-reporting gem?if yes, can you paste the exact error what it is complaining about?

The command stucks. There is no result.

rpm -qa|grep chefdk chefdk-2.4.22-1.el7.x86_64 pwd