@Bern  You just need to follow same steps you used in your original post question.   You drag the add process group icon to the canvas.: In the pop-up window select the "browse" icon to far right instead of entering a "Name": Navigate to and select your downloaded flow definition you created in Apache NiFi 1.13 (I would strongly encourage you to be using Apache NiFi 1.28). There have been many changes a fixes and you'll want to make sure your Apache NiFi 1.x dataflows are valid on the latest 1.28 before attempting to move them to Apache NiFi 2.x).  Apache NiFi 1.28 will also have deprecation logging that will help make user aware if they are using components that no longer exist in Apache NiFi 2.x.  You'll need to make modification to your flows so you are no longer using those components before moving your flow definitions over to NiFi 2.x.   Also be aware that NiFi 2.x no longer support NiFi Variables. These were deprecated and removed.  The replacement is NiFi Parameters.  So if you are using Variables in your NiFi 1 dataflows, you' need to modify your dataflows to use paramters before moving your flow definitons over to NiFi 2. After you have selected your flow definition json file, you have option to change name that is displays from json and click "Add": Remember that Apache NiFi 2.x is a major release change and the expectation is that you are on the latest NiFi 1.28 release before attempting to move to NiFi 2.  NOTE:  Cloudera Flow Management (CFM) licensed users have access to Cloudera specific automation tools that can auto transform templates into valid flow definitions and automated migration of CFM 2.1.7 SP2 (Apache NiFi 1.x based) flow.json.gz files into CFM 4.1x (Apache NiFi 2.x based) compatible version. This automation handles deprecated components, converting NiFi variables (deprecated) into NiFi parameters (replacement), etc. https://docs.cloudera.com/cfm/4.11.0/cfm-migration-tool/topics/cfm-mt-overview.html#concept_wlv_sl3_... Please help our community grow. If you found any of the suggestions/solutions provided helped you with solving your issue or answering your question, please take a moment to login and click "Accept as Solution" on one or more of them that helped. Thank you, Matt ... View more

Hi Matt, What I discovered is that when running nifi on windows 10 ( and possibly linux as well?), any passwords that have special characters like + or \ etc need to be converted to ascii I think it is.  so : /     becomes   %2F  +    becomes   %2B Once i did this, it worked OK. ... View more