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I am working on an Android project using Room Database with Kotlin Symbol Processing (KSP), but I keep getting the following error when building my project:

[ksp] [MissingType]: Element 'com.example.notesapp.database.NoteDatabase' references a type that is not present

I have already checked my NoteDatabase and NoteDao, and they seem correctly implemented.

My Setup

package com.example.notesapp.database

import android.content.Context
import androidx.room.Database
import androidx.room.Room
import androidx.room.RoomDatabase
import com.example.notesapp.BuildConfig
import com.example.notesapp.model.Note

@Database(entities = [Note::class], version = BuildConfig.VERSION_CODE, exportSchema = false)
abstract class NoteDatabase : RoomDatabase() {
    abstract fun getNoteDao(): NoteDao

    companion object {
        @Volatile
        private var instance: NoteDatabase? = null

        fun getInstance(context: Context): NoteDatabase {
            return instance ?: synchronized(this) {
                instance ?: createDatabase(context).also { instance = it }
            }
        }

        private fun createDatabase(context: Context) =
            Room.databaseBuilder(
                    context.applicationContext,
                    NoteDatabase::class.java,
                    "note_db"
                )
                .build()
    }

}

NoteDao

package com.example.notesapp.database

import androidx.lifecycle.LiveData
import androidx.room.Dao
import androidx.room.Delete
import androidx.room.Insert
import androidx.room.OnConflictStrategy
import androidx.room.Query
import androidx.room.Update
import com.example.notesapp.model.Note

@Dao
interface NoteDao {
    @Insert(onConflict = OnConflictStrategy.REPLACE)
    suspend fun insertNote(note: Note)

    @Update
    suspend fun updateNote(note: Note)

    @Delete
    suspend fun  deleteNote(note: Note)

    @Query("SELECT * FROM NOTES ORDER BY  id DESC")
    fun getAllNotes(): LiveData<List<Note>>

    @Query("SELECT * FROM notes WHERE noteTitle LIKE '%' || :query || '%' OR noteDesc LIKE '%' || :query || '%'")
    fun searchNote(query: String?): LiveData<List<Note>>
}

Thanks for help

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