Build error in maven-incremental-build

Building tools/maven/maven-incremental-build from the source distribution produces the following error:

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building Apache Tuscany SCA Incremental Build Generator Maven Plugin
[INFO] task-segment: [install]
[INFO] ------------------------------------------------------------------------
[INFO] [plugin:descriptor]
[WARNING]

Goal prefix is specified as: 'incremental'. Maven currently expects it to be 'tuscanyincremental-build'.

[WARNING] Using platform encoding (Cp1252 actually) to read mojo metadata, i.e. build is platform dependent!
[INFO] Applying mojo extractor for language: java
[INFO] Mojo extractor for language: java found 0 mojo descriptors.
[INFO] Applying mojo extractor for language: bsh
[INFO] Mojo extractor for language: bsh found 0 mojo descriptors.
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error extracting plugin descriptor: 'No mojo definitions were found for plugin: org.apache.tuscany.sca:tuscany-maven-incremental-build.'