I am trying to post a process group to NIFI using the REST API. I am local, so there is no authentication (yet) and everything is done as 'anonymous'. I am able to create a process group normally via the drag and drop. I am also up to do a PUT on an existing process group and a GET to retrieve all current process groups. My POST always returns a 409 Conflict (the name is unique for the new process group). My header values are as follows: Content-Type:application/json Content-Encoding:gzip and my JSON body looks like this: { "revision": { "version": 0}, "processGroup": { "position": { "x": 2, "y": 2 }, "parentGroupId": "<my-parent-group-id>", "name": "SuperAwesomeProcessGroup", "parent": { "id": "<my-parent-group-id>", "name": "NiFi Flow" } } } My POST URL is: http://<host-url>:<host-port>/nifi-api/controller/process-groups/<my-parent-group-id>/process-group-references This also fails if I use curl. I am running version 0.7.4 of NIFI. ... View more