由于未捕获的异常'NSInternalInconsistencyException'而终止应用程序，原因：'错误：无法打开数据库，消息'不是错误'。'

I am making an app with many database operations. Since SQLite caches data, in my applicationDidReceiveMemoryWarning method, I am closing the database and opening it again to delete the cached data.I am making an app with many database operation