“DbContextOptionsBuilder”未包含“UseSqlServer”的定义，并且找不到可接受第一个“DbContextOptionsBuilder”类型参数的可访问扩展方法“UseSqlServer”(是否缺少 using 指令或程序集引用?)

public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllers();
 
            //注册数据库上下文
            services.AddEntityFrameworkSqlServer().AddDbContext<SQLDbRWContext>(options =>
            {
                options.UseSqlServer(Configuration.GetConnectionString("Main_ReadAndWrite"));
            });
        }