---
title: QR Mobile Debugging
slug: world-sdk-guide/qr-mobile-debugging
docTags: 
createdAt: 2024-09-02T08:34:13.137Z
---

:::hint{type="danger"}
**❗️ Caution**
During mobile testing, the QR code window must be up.
:::

There may be a slight delay due to interlocking communication with the editor.

Only 3 types of logs are available:

```typescript
console.log("QR Mobile console log"); 
console.warn("QR Mobile console warning"); 
console.error("QR Mobile console error");
```



When testing on mobile after QR mobile build, you can see that the log you created is captured in the editor console window.

![](https://api.archbee.com/api/optimize/fCt3n1oCa8rgNJ8fw9I2N-a7iH5_ipNjJLD7dfm2gjF-20240904-102426.png)



In addition, exception errors that occur at mobile runtime will also be logged in the editor.

Please refer to the following video for detailed instructions on how to use it

::embed[[https://www.youtube.com/watch?v=OfigGpFrxiA](https://www.youtube.com/watch?v=OfigGpFrxiA)]{url="https://www.youtube.com/watch?v=OfigGpFrxiA"}

:::hint{type="success"}
**👍 How to check server code as console log**
You can check this by sending a message from the server to the client and taking a log on the client.
:::