Plugin cannot be applied as documented

[jhansche]

Trying to apply the plugin as described in https://github.com/android/project-replicator/blob/master/docs/USAGE.md results in multiple build errors, at various times:

* What went wrong:
A problem occurred evaluating project ':host-api-demo'.
> KOTLIN_STAT_ENABLED_PROPERTY

* What went wrong:
A problem occurred configuring project ':host-api-demo'.
> com.android.builder.errors.EvalIssueException: compileSdkVersion is not specified. Please add it to build.gradle

* What went wrong:
A problem occurred evaluating project ':host-api-demo'.
> Could not initialize class org.jetbrains.kotlin.gradle.plugin.KotlinGradleBuildServices

These Android modules do have compileSdkVersion (or compileSdk using newer dsl). Some modules are not Android modules.

What worked for me was to move the buildscript/classpath entry from build.gradle into settings.gradle's pluginManagement block, add the plugin by id to settings.gradle's plugin{} block, add a resolutionStrategy (since there's no gradle plugin marker published) to resolve the plugin id, and then change the init.gradle's allprojects{apply} to apply by plugin id.

--- settings.gradle
+++ settings.gradle
@@ -48,0 +48,1 @@ pluginManagement {
+        id "com.android.gradle.project.replicator" version "0.2"
@@ -55,2 +56,5 @@ pluginManagement {
     resolutionStrategy {
         eachPlugin {
+            if (requested.id.id == "com.android.gradle.project.replicator") {
+                useModule("com.android.gradle.replicator:project-replicator:0.2")
+            }
@@ -69,0 +72,1 @@ plugins {
+    id "com.android.gradle.project.replicator" apply false
--- build.gradle
+++ build.gradle
@@ -27,0 +30,3 @@
+allprojects {
+    apply plugin: "com.android.gradle.project.replicator"
+}

This allowed :getStructure to complete successfully.

• Gradle 8.0.2
• AGP 7.4.2
• 202 total modules count