Can not add HDF 3.3.1 service in Ambari 2.7.3
I am trying to install HDF 3.3.1 (NIFI) to my existing HDP 3.1 cluster with Ambari 2.7.3. (https://supportmatrix.hortonworks.com/)
I have followed all the steps in the documentation (Installing HDF Services on an Existing HDP Cluster), installed HDF management pack, ambari server restart = yes but I still cannot add HDF services through Add Service Wizard. Nothing to choose in 'Choose Serivce' .. Also cannot find space to update HDF Base URL
Can someone help me with this issue.
Thanks.

