Flexible publish on conditional step for jenkins job builder

i am trying to create a jenkins job using job-builder plugin. when i try to add a conditional publisher to trigger a down stream job on only success scenario using the code as per the Openstack documentation. but i am not able to do it. It is blocking my task. please help me on this.

    publishers:
      - conditional-publisher:
          - condition-kind: current-status
            condition-worst: FAILURE
            condition-best: SUCCESS
    action:
      publishers:
        - trigger-parameterized-builds:
            - project: 'default_job'
              current-parameters: true
              trigger-with-no-params: false

Error:

File "/usr/local/lib/python2.7/site-packages/jenkins_jobs/modules/builders.py", line 2019, in gen_xml
    for builder in data[alias]:
TypeError: 'NoneType' object is not iterable