Registration of client system fails with 'undefined method `inject' for nil:NilClass' error

Solution Unverified - Updated -


  • Registration of system to Satellite server fails with below error:
[root@client]# subscription-manager register --org="RedHat" --activationkey="rhel" 
undefined method `inject' for nil:NilClass


  • Red Hat Satellite 6.2.10
  • RHEL 7.x

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