我尝试使用MongoDB更改流，我需要使用replicaSets，但mongoDB不让我使用它，因为负载均衡器，我试图像这样设置它为false：

mongodb+srv://${process.env.DB_USERNAME}:${process.env.DB_PASSWORD}@${process.env.DB_CLUSTER}/?replicaSet=rs0&loadBalanced=false&readPreference=secondaryPreferred

但它仍然给我同样的错误：

MongoParseError: loadBalanced option not supported with a replicaSet option

下面是我的连接代码：

const uri = `mongodb+srv://${process.env.DB_USERNAME}:${process.env.DB_PASSWORD}@${process.env.DB_CLUSTER}/?replicaSet=rs0&loadBalanced=false&readPreference=secondaryPreferred`;
    const client = new MongoClient(uri, {
      useNewUrlParser: true,
      useUnifiedTopology: true,
    });

    await client.connect();