Issue

• When pushing code to an OpenShift application, the following error is reported:

NameError: uninitialized constant ActiveModel::Observing
    from /opt/rh/ruby193/root/usr/share/gems/gems/openshift-origin-common-1.29.1/lib/openshift-origin-common/models/model.rb:13:in `<class:Model>'
    from /opt/rh/ruby193/root/usr/share/gems/gems/openshift-origin-common-1.29.1/lib/openshift-origin-common/models/model.rb:6:in `<module:OpenShift>'
    from /opt/rh/ruby193/root/usr/share/gems/gems/openshift-origin-common-1.29.1/lib/openshift-origin-common/models/model.rb:5:in `<top (required)>'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:55:in `require'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:55:in `require'
    from /opt/rh/ruby193/root/usr/share/gems/gems/openshift-origin-common-1.29.1/lib/openshift-origin-common.rb:22:in `<top (required)>'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:55:in `require'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:55:in `require'
    from /opt/rh/ruby193/root/usr/share/gems/gems/openshift-origin-node-1.34.1/lib/openshift-origin-node/model/frontend_proxy.rb:20:in `<top (required)>'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:55:in `require'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:55:in `require'
    from /opt/rh/ruby193/root/usr/share/gems/gems/openshift-origin-node-1.34.1/lib/openshift-origin-node/model/application_container.rb:18:in `<top (required)>'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:60:in `require'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:60:in `rescue in require'
    from /opt/rh/ruby193/root/usr/share/rubygems/rubygems/custom_require.rb:35:in `require'
    from (irb):11
    from /opt/rh/ruby193/root/usr/bin/irb:12:in `<main>'irb(main):012:0>