[Solved] cannot load such file -- puppetserver/ca/cli (LoadError)

Issue:- When try to list the CA certificates in the puppet getting below error 

 [root@puppetmaster bin]# /opt/puppetlabs/bin/puppetserver ca list 

Ignoring executable-hooks-1.3.2 because its extensions are not built. Try: gem pristine executable-hooks --version 1.3.2 

Ignoring gem-wrappers-1.3.2 because its extensions are not built. Try: gem pristine gem-wrappers --version 1.3.2 

Traceback (most recent call last): 

 2: from /opt/puppetlabs/server/apps/puppetserver/cli/apps/ca:3:in `

' 

 1: from /opt/puppetlabs/puppet/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require' 

/opt/puppetlabs/puppet/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- puppetserver/ca/cli (LoadError) 

Resolution:- The above error comes when you are not using sudo command. Even if you are running via root than also you need to use the sudo command to resolve this issue 

 [root@puppetmaster bin]# sudo /opt/puppetlabs/bin/puppetserver ca list 

Requested Certificates: puppetclient.unixcloudfusion.in (SHA256) B3:51:2A:59:CE:68:29:B0:68:9B:C1:53:59:28:97:45:AE:B6:61:97:64:DE:AE:64:40:D7:BE:93:78:65:42:1D