IssueTracker

Component used: Navigation Version used: 2.5.0-alpha03

If you set up an Android library module with NO MANIFEST and the following android block:

android { 
    namespace = "com.some.package"
}

SafeArgs throws the following error:

Caused by: java.io.FileNotFoundException: /Users/parth/nearside-android/features/dashboard/src/main/AndroidManifest.xml (No such file or directory)
	at androidx.navigation.safeargs.gradle.SafeArgsPlugin.rFilePackage(SafeArgsPlugin.kt:145)
	at androidx.navigation.safeargs.gradle.SafeArgsPlugin.access$rFilePackage(SafeArgsPlugin.kt:41)
        at androidx.navigation.safeargs.gradle.SafeArgsPlugin$apply$2.invoke$lambda-4(SafeArgsPlugin.kt:106)
	at org.gradle.api.internal.tasks.DefaultTaskContainer.create(DefaultTaskContainer.java:362)
	at androidx.navigation.safeargs.gradle.SafeArgsPlugin$apply$2.invoke(SafeArgsPlugin.kt:93)
	at androidx.navigation.safeargs.gradle.SafeArgsPlugin$apply$2.invoke(SafeArgsPlugin.kt:92)
	at androidx.navigation.safeargs.gradle.SafeArgsPlugin.forEachVariant$lambda-1(SafeArgsPlugin.kt:55)

This is surprising, because of the following line in the docs:

If you set the namespace in the build.gradle file and no other data needs to be specified, then the library doesn’t need a manifest file.

(source: https://developer.android.com/studio/publish-library/prep-lib-release)

I've created a small sample project showing this error, attached to the ticket.