Android Room & Hilt

问：

我在 Android Studio 中开发项目时遇到错误。这可能是什么原因？

我在使用Hilt时遇到了这个错误，我不明白原因。

看看随附的代码。

@Dao
interface Product Dao {
                
        @Query("SELECT price FROM products") 
        suspend fun getTotalAmount(): List<Double>
    
        @Query("SELECT isFavorite FROM products") 
        suspend fun getFavorite(): List<Boolean>
    
        @Query("SELECT * FROM products")
        fun getAllCart(): LiveData<List<ProductModel>>
    
        @Insert
        suspend fun insert(productModel: ProductModel)
    
        @Query("DELETE FROM products WHERE id = :uid") 
        suspend fun delete(uid: Int)
}

class Converters {
       private val gson
       Gson(){}
                    
       @TypeConverter
       fun fromProductsItem(item: ProductsItem): String {
           return gson.toJson(item)
       }
                  
       @TypeConverter
       fun toProductsItem(itemString: String): ProductsItem {     
           return gson.fromJson(itemString, ProductsItem::class.java)
       }
}

@Dao
interface FavoriteDao {
       @Query("SELECT * FROM favorite")|
       suspend fun getAllFavorite(): List<Favorite Model>

       @Query("SELECT * FROM favorite WHERE uid = :id")
       fun getCurrentFavorite(id: Int) : FavoriteModel?
       
       @Insert
       suspend fun insertFavorite (favoriteModel: FavoriteModel)

       @Query("DELETE FROM favorite WHERE uid = :id")
       suspend fun delete(id: Int)
}