# Troubleshooting

### 1. 创建频道时出现“无法确认地址”错误

此错误发生在输入的 link\_url 不是基本地址体系（URL）时。请确保您输入了正确的地址，或者不要输入地址。

### 2. 无法上传

由于安全原因，上传时需要使用允许的文件类型。在仪表板 > 设置 > 文件上传允许类型中，选择如 image、video、document、compress 等允许的 MIME 类型。 必须启用对象存储。在与 Object Storage 产品集成后才能使用此功能。

### 3. 收到所有消息

如果您加入了多个频道，则会接收到所有加入频道的消息。 您可以通过 channelId 来区分不同的频道。

```javascript
nc.bind('onMessageReceived',function(channel, message) {       
    // 当加入多个频道时，所有频道的消息都会接收到这里。
    // 需要通过 channel 来区分展示给客户的频道。
    if(channel == current_channel) {
        console.log(message);
    }
});
```


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