Github user peter-gergely-horvath commented on the issue:
https://github.com/apache/nifi/pull/2872
@MikeThomsen This is kind of tricky: NiFi flows refer the precise version
of NiFi within the flow XML file, so you have something like this for the
processor definitions:
```
<class>org.apache.nifi.processors.standard.GetHTTP</class>
<bundle>
<group>org.apache.nifi</group>
<artifact>nifi-standard-nar</artifact>
<version>1.7.1</version>
</bundle>
```
When you export a flow file to test, I would expect the you to use
precisely the same NiFi version as the one used to export the flow file.
I think there is a little bit of confusion here: please note that these
tests do not test the test-harness. The test-harness itself is not tested (kind
of a chicken-and-egg issue): these test cases are merely _samples_, which are
referenced in the documentation: they demonstrate how an _end-user_ could
create test cases for his/her own flows.
Please download the ZIP of NiFi 1.7.1 to the `Downloads` directory within
your user home (referenced by
`org.apache.nifi.testharness.samples.Constants#NIFI_ZIP_DIR` as
`new File(System.getProperty("user.home"), "Downloads")` ) and try running
the test case again.
---
