Gradle build fails with message about dependency resolution

[swalton00]

I am attempting to use gradle to process an Asciidoctor set of documentation. All attempts have failed thus far. I have simplified the project down the most basic build.gradle file, yet it seems to continue to fail. Is this a bug or what am I doing wrong?

A very basic gradle buld file imports correctly, but the task "asciidoctor" fails with the message:

Resolving dependency configuration '__$$asciidoctorj$$_d' is not allowed as it is defined as 'canBeResolved=false'.
Instead, a resolvable ('canBeResolved=true') dependency configuration that extends '$$asciidoctorj$$___d' should be resolved.

Gradle version is 8.12, JVM is Azul 11.0.25 The build file is:

plugins {
id 'org.asciidoctor.jvm.convert' version '4.0.1'
id 'org.asciidoctor.jvm.pdf' version '4.0.1'
}

repositories {
mavenCentral()
}
asciidoctorj {
// Global configuration
}

asciidoctor {
asciidoctorj {
// local customisation for HTML conversion
}
}

asciidoctorPdf {
asciidoctorj {
// local customisation for PDF conversion
}
}