No pude encontrar com.commercehub.gradle.plugin: Gradle-Avro-Plugin: 0.10.0.

buildscript {
    ext.avroVersion = '0.10.0'
    repositories {
        maven {
            url "https://plugins.gradle.org/m2/"
        }
        mavenCentral()
    }
    dependencies {
        classpath "com.commercehub.gradle.plugin:gradle-avro-plugin:$avroVersion"
    }
}
Vishal