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apache-nifi

Dependencies outside of Apache NiFi must not use SNAPSHOT versions

I'm new to NiFi and I'm trying to develop my first custom processor.

I'm following documentation(s)/tutorial(s) on how to create one, and here I am:

  1. generated maven skeleton project for nifi-processor; (✔)

  2. added some simple implementation in the onTrigger(...) method; (✔)

  3. failing to build .nar. (x)

Whenever I'm executing mvn clean package either within any sub-directory of the custom processor project structure (nifi-artifactBaseName-nar or nifi-artifactBaseName-processors) or in the root directory of the project, I get this:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:3.2.1:enforce (enforce-maven-version) on project nifi-myfirstcustomrprocessor-nar:   
[ERROR] Rule 3: org.apache.maven.enforcer.rules.dependency.RequireReleaseDeps failed with message:
[ERROR] Dependencies outside of Apache NiFi must not use SNAPSHOT versions
[ERROR] com.giorgi.tutorials:nifi-myfirstcustomrprocessor-nar:nar:1.0-SNAPSHOT
[ERROR]    com.giorgi.tutorials:nifi-myfirstcustomrprocessor-processors:jar:1.0-SNAPSHOT <--- is not a release dependency

Anything I'm doing wrong? any help?

Solution

  • Solved.

    When creating a custom processor project (or just any maven project), version 1.0-SNAPSHOT is generated by default (disregarding of whether you create it from command-line, IDE, or etc.), and that's NOT OK for NiFi custom processor - you should NOT use SNAPSHOT for versioning your custom processor artifact.

    I just changed 1.0-SNAPSHOT to 1.0 and everything worked fine - .nar has been built.