Gradle maven 发布插件配置引用了动态创建的 gradle 任务

我的 build.gradle 文件中有一个如下所示的发布配置块

publishing {
publications {
    maven(MavenPublication) {
        groupId "groupId"
        artifactId 'artifactId'
        version "4.0"
        artifact "$buildDir/outputs/aar/artifact-release.aar"
        artifact releaseJavadocsJar

        // Generate pom file so that the artifact dependencies can be fetched automatically.
        pom.withXml {
            def dependenciesNode = asNode().appendNode('dependencies')
            configurations.compile.allDependencies.each { dependency ->
                def dependencyNode = dependenciesNode.appendNode('dependency')
                dependencyNode.appendNode('groupId', dependency.group)
                dependencyNode.appendNode('artifactId', dependency.name)
                dependencyNode.appendNode('version', dependency.version)
            }
        }
    }
}

}

请注意releaseJavadocsJar，这是一个 gradle 任务，定义如下：

  android.libraryVariants.all { variant ->
    if (variant.name == 'release') {
        def taskJavadoc = task("releaseJavadocs", type: Javadoc) {
            source = variant.javaCompile.source
            classpath = files(((Object) android.bootClasspath.join(File.pathSeparator)))
            classpath += files(variant.javaCompile.classpath.files)
        }
        task("releaseJavadocsJar", type: Jar) {
            classifier = 'javadoc'
            from taskJavadoc.destinationDir
        }
    }
}

当我同步 gradle 这条线时

   artifact releaseJavadocsJar

该出版物抱怨说

Error:(62, 0) Could not get unknown property 'releaseJavadocsJar' for object of type org.gradle.api.publish.maven.internal.publication.DefaultMavenPublication.

这意味着当 gradle 同步发生时，我动态创建的任务还不存在。

有没有办法解决？

将其包裹在一个project.afterEvalute块不起作用，但这样做了：

project.tasks.whenTaskAdded { addedTask ->
if (addedTask.name == 'releaseJavadocsJar') {
    // Publishing to local maven repo via 'gradlew publishToMavenLocal'.
    publishing.publications {
         maven(MavenPublication) {
    groupId "groupId"
    artifactId 'artifactId'
    version "4.0"
    artifact "$buildDir/outputs/aar/artifact-release.aar"
    artifact releaseJavadocsJar

    // Generate pom file so that the artifact dependencies can be fetched automatically.
    pom.withXml {
        def dependenciesNode = asNode().appendNode('dependencies')
        configurations.compile.allDependencies.each { dependency ->
            def dependencyNode = dependenciesNode.appendNode('dependency')
            dependencyNode.appendNode('groupId', dependency.group)
            dependencyNode.appendNode('artifactId', dependency.name)
            dependencyNode.appendNode('version', dependency.version)
        }
    }
}