我用过Kotlin，当我尝试用sugarorm获取数据时出现了一些错误

D/SQL Log: SQLiteQuery: SELECT * FROM PRODUCT_SUGAR_ORM W/System.err: java.lang.NoSuchMethodException: <init> []
 at java.lang.Class.getconstructor(Class.java:531)
 at java.lang.Class.getDeclaredConstructor(Class.java:510)
 at com.orm.SugarRecord.getEntitiesFromCursor(SugarRecord.java:212)
 at com.orm.SugarRecord.find(SugarRecord.java:204)
 at com.orm.SugarRecord.listAll(SugarRecord.java:127)

这是我的代码

data class Productsugarorm(
        var base_price: Double,var category: Int,val created_on: String,var description: String,val id: Int,var name: String,var sell_price: Double,var stock: Int,val store: Int,val type: String,val updated_on: String
):SugarRecord(){
    fun Productsugarorm(){}
}

我想使用Log.w("load-local","${SugarRecord.listAll(Productsugarorm::class.java)}")