IssueTracker

When I enable KSP2 through gradle.properties (ksp.useKSP2=true), I get errors when compiling a Room database that uses a serialized entity.

e: [ksp] [MissingType]: Element 'com.example.myapplication.Item' references a type that is not present
e: [ksp] androidx.room.RoomKspProcessor was unable to process 'com.example.myapplication.MyDatabase' because not all of its dependencies could be resolved. Check for compilation errors or a circular dependency with generated code.

It's as simple as having this entity:

import androidx.room.Entity
import androidx.room.PrimaryKey
import kotlinx.serialization.Serializable

@Serializable
@Entity(tableName = "ITEM")
data class Item(
    @PrimaryKey
    val id: Int,
    val name: String
)

And this database:

import androidx.room.Database
import androidx.room.RoomDatabase

@Database(entities = [Item::class], version = 1, exportSchema = false)
abstract class MyDatabase : RoomDatabase() {

}

Minimal reproducible repository: https://github.com/stevenzeck/KspIssueRepo. If you remove ksp.useKSP2, it works fine. If you remove @Serializable in the entity, it works fine. If you keep @Serializable and remove the Room annotations, it works fine.