I'm working on a multi-module Android project and ...

# android

[Vivek Modi]

I'm working on a multi-module Android project and created a convention plugin to automatically generate namespaces based on the module path. The idea is to avoid manually setting the namespace in each build.gradle.kts file.

[Vivek Modi]

Here's my convention plugin `(build-logic/convention/src/main/kotlin/AndroidNamespaceConventionPlugin.kt)`:

class AndroidNamespaceConventionPlugin : Plugin<Project> {

    override fun apply(target: Project) {
        with(target) {
            plugins.withId("com.android.library") {
                configureNamespace()
            }
            plugins.withId("com.android.application") {
                configureNamespace()
            }
        }
    }

    private fun Project.configureNamespace() {
        val basePackage = "com.hub.vivek"

        val modulePath = project.path
        val namespaceSuffix = modulePath
            .split(":")
            .filter { it.isNotBlank() }
            .joinToString(".")

        val fullNamespace = "$basePackage.$namespaceSuffix"

        extensions.configure<com.android.build.gradle.BaseExtension> {
            namespace = fullNamespace
        }
    }
}

In build-logic/build.gradle.kts:

plugins {
    `kotlin-dsl`
}

group = "com.hub.vivek.buildlogic"

java {
    sourceCompatibility = JavaVersion.toVersion(libs.versions.jvmTarget.get())
    targetCompatibility = JavaVersion.toVersion(libs.versions.jvmTarget.get())
}

kotlin {
    compilerOptions {
        jvmTarget.set(JvmTarget.valueOf("JVM_${libs.versions.jvmTarget.get()}"))
    }
}

dependencies {
    compileOnly(libs.compose.gradlePlugin)
    compileOnly(libs.android.gradlePlugin)
    compileOnly(libs.kotlin.gradlePlugin)
}

gradlePlugin {
    plugins {
        register("androidNameSpace") {
            id = libs.plugins.vivek.android.namespace.get().pluginId
            implementationClass = "AndroidNamespaceConventionPlugin"
        }
    }
}

In libs.versions.toml:

[plugins]
vivek-android-namespace = { id = "vivek.android.namespace" }

And in feature/auth/build.gradle.kts:

plugins {
    alias(libs.plugins.vivek.android.namespace)
    // other plugins
}

Now the problem: when I try to access the generated R class in the feature:auth module like this:

import com.hub.vivek.feature.auth.R
val name = R.string.name

[Vivek Modi]

I get an error: Unresolved reference: R

[Vivek Modi]

The module compiles, but the resource references are not being recognized in the IDE.

[Vivek Modi]

The module compiles, but the resource references are not being recognized in the IDE.
What I’ve tried:
1. Verified that resources exist in res/values/strings.xml.
2. Cleaned and rebuilt the project.
3. Invalidated caches and restarted Android Studio.
My Question:
🔧 How can I make sure the namespace is correctly picked up by the Android Gradle Plugin so that the generated R class is recognized in IDE and during build?
Is there something I’m missing in how the namespace is being applied via the plugin?

[Chrimaeon]

Ask in the Gradle community slack.

[Chrimaeon]

Or